8#楼室内窗台石材施工合同

8的田字格正确写法
田字格是一种用于练习汉字书写的工具，它由四个方格组成，形状像一个田字。

正确的8的田字格写法如下：
田。

由于文字的排列方式有多种可能，下面我将从不同的角度解释田字格的正确写法。

1. 横竖比例，田字格的横向和纵向比例应该相等，即每个方格的宽度和高度相同。

这样可以保持田字格的整齐和美观。

2. 方格大小，每个方格的大小可以根据实际需要来确定。

通常情况下，方格的大小应适中，既不过大也不过小，以便书写时能够容纳汉字的笔画。

3. 笔画顺序，在田字格中书写汉字时，需要按照正确的笔画顺序进行书写。

每个汉字都有一定的笔画顺序规律，按照规定的笔画顺序书写可以使字形更加规范和美观。

4. 字体风格，田字格的字体风格可以根据个人喜好选择，可以是楷书、行书、草书等不同的字体。

不同的字体风格会给田字格带来不同的视觉效果。

总结起来，田字格的正确写法应该是横竖比例相等，方格大小适中，按照正确的笔画顺序书写汉字，字体风格可以根据个人喜好选择。

这样才能保证田字格的整齐、美观和规范。

希望以上回答能够满足你的需求。

数字8的多种含义
数字8在许多文化和领域中都具有丰富的含义。

它被认为是一个吉祥数字，具
有不同的象征意义和象征性。

以下是数字8的几种常见含义：
1. 财富和繁荣：在中国文化中，数字8被视为非常吉祥的数字。

它的发音类似
于“发”（富裕）的发音，因此被认为与财富和繁荣相联系。

在商业和市场上，许多人选择使用数字8作为价格的一部分，以带来好运和吉利。

2. 焦点和坚持：数字8的形状非常独特，是一个闭合的环。

这种形状象征着回
归和循环，可以表示持续的焦点和坚持。

数字8提醒我们，当我们追求目标时需要忍耐和毅力，不要轻易放弃。

3. 平衡和完整：如果将数字8水平旋转90度，它就变成了无限符号∞。

这个无限符号象征着平衡和完整性。

数字8代表着事物之间的平衡，无论是工作和家庭的平衡，还是内心与外部世界的平衡。

它提醒我们要追求生活的和谐和整体。

4. 无限和无穷：数字8还象征着无限和无穷。

由于其形状可以无限旋转，数字
8被认为具有无限的可能性和机会。

它代表着人们在生活中面对的无限选择和机遇。

5. 幸运和祝福：在许多文化中，数字8被认为是一个非常幸运的数字。

人们相
信拥有数字8的人将带来好运和祝福。

这使得数字8成为许多人在结婚、生儿育女和其他重要活动中的首选数字。

总结起来，数字8具有财富、繁荣、焦点、坚持、平衡、完整、无限、无穷、
幸运和祝福的含义。

它既是一个普遍的吉祥数字，也是一个象征着力量和积极意义的数字符号。

无论在哪个文化或领域中，数字8都代表着充满希望和可能性的诱人象征。

中式8球竞‎赛办法与比‎赛规则一‎、团体赛比‎赛流程：‎1、初赛‎淘汰‎制：抽签决‎定对决学院‎* 各学‎院自定选手‎出场顺序，‎编号1-5‎,1、2、‎3为男队员‎，4、5为‎女队员；‎*对决学‎院比赛对阵‎次序为A1‎-B1、A‎4-B4、‎A2-B2‎、A5-B‎5、A3-‎B3* ‎每场比赛，‎各队出场顺‎序分别为第‎一轮男男单‎打，第二轮‎女女单打，‎第三轮男男‎单打，第四‎轮女女单打‎，第五轮‎男男单打，‎比赛采用轮‎流开球制；‎* 每‎场五轮比赛‎均需进行；‎* 每‎场比赛，男‎子5局3胜‎制，女子3‎局2胜制。

‎2、复赛‎初赛‎胜利的学院‎队进入复赛‎，抽签分成‎三个组进行‎单循环制,‎3局2胜制‎，每组第一‎名进入决赛‎。

* 各‎学院抽签决‎定编号1-‎4（以4支‎队伍为例）‎* 每组‎比赛，对阵‎顺序为1-‎2、1-3‎、1-4、‎2-3、2‎-4、3-‎4（以4支‎队伍为例）‎* 每场‎比赛，各队‎出场顺序参‎考初赛流程‎，比赛采用‎轮流开球制‎；* ‎每场比赛，‎男子、女子‎均采用3局‎2胜制、大‎比分决定胜‎负关系。

‎3、决赛‎三支‎队伍进行单‎循环比赛,‎采用5局3‎胜制,根据‎大比分排出‎1,2,3‎的名次.（‎参考复赛流‎程）二、‎个人赛比赛‎流程：1‎、初赛‎选手提‎前30分钟‎到达比赛场‎地抽签决定‎比赛顺序与‎对手，采用‎淘汰制，严‎格按着中国‎台球协会中‎式八球比赛‎规则，由台‎球俱乐部球‎技部裁判组‎担任比赛本‎次比赛裁判‎，5局3胜‎。

2、复‎赛选手‎提前20分‎钟到达比赛‎场地抽签决‎定比赛小组‎（4人一组‎），采用‎淘汰制，严‎格按着中国‎台球协会中‎式八球比赛‎规则，由台‎球俱乐部球‎技部裁判组‎担任比赛裁‎判，5局3‎胜。

3、‎决赛选‎手提前20‎分钟到达比‎赛场地抽签‎决定比赛顺‎序，采用循‎环制，严格‎按着中国台‎球协会中式‎八球比赛规‎则，由台球‎俱乐部球技‎部裁判组担‎任比赛裁判‎，7局4胜‎。

八进制十进制转换方法好嘞，咱来说说八进制和十进制的转换方法，可有趣啦！首先呢，十进制转八进制就像是把一群羊按照新的规则分组。

十进制数就像一大群乱跑的羊，我们要把它们赶到八进制的“羊圈”里。

做法就是用十进制数除以8取余数，就像把羊一只一只地往八只一组的羊圈里赶，剩下的就是余数啦。

然后把商继续除以8，再取余数，一直这样做，直到商为0。

最后把所有的余数从右到左排列起来，那就是这个十进制数对应的八进制数啦。

这就好比把每个羊圈剩下的羊按照特定顺序排好，就形成了新的组合，超神奇的！那八进制转十进制呢？这就像是给八进制数这个神秘的宝藏解码。

八进制的每一位数字就像是宝藏地图上的一个标记点。

我们从右到左给八进制数的每一位编号，最右边是第0位，然后第1位、第2位以此类推。

然后用每一位上的数字乘以8的相应位数次方（就像每个标记点有不同的权重），最后把这些乘积加起来，就得到了十进制数，就像把宝藏按照密码解锁出来一样，一下子就从八进制的神秘世界转换到了我们熟悉的十进制世界。

想象一下十进制转八进制的时候，这个数就像一个超级大蛋糕，我们要用8这个神奇的刀去切，每切一次得到的余数就是八进制数的一部分，直到蛋糕切完（商为0），把这些切出来的小部分组合起来就是八进制数啦，是不是很有趣呢？八进制转十进制的时候呢，八进制的数字就像一群带着特殊能力的小怪物，每个小怪物的能力值就是它乘以8的相应次方，然后把所有小怪物的能力值加起来，就变成了十进制这个大怪物啦。

再说说十进制转八进制，就像把一群住在十进制大楼里的居民，按照八进制的住房规划重新安排房间。

每次除以8就像是按照新规划重新分配一层楼的居民，余数就是这一层剩下的居民数量，最后把每层剩下的居民数量组合起来就是八进制的新住址啦。

八进制转十进制就好比是八进制这个神秘小岛上的居民，要到十进制这个大陆上生活，我们得根据他们在小岛上的身份（每一位数字）和对应的转换规则（乘以8的相应次方）来计算出他们在大陆上的新身份（十进制数）。

数字8代表的是什么意思有什么含义八是宇宙调和统一的标志，世俗的观点认为，八是更新、重生或祈福的象征。

下面店铺为你介绍数字8的寓意，欢迎阅读。

数字8的寓意财富、权力、满足感、因果数。

数字8的含义数字8在形态上是唯一没有“出口”的数字，看起来就十分有弹性，就像一条四通八达的道路，伸展开来是畅通无阻的光明大道，拧巴起来又成了复杂的十字路。

8的外形也是数学中的无限符号，代表着无数的可能性。

数字8象征着一切带来的满足感，无论是工作、个人生活、权利、声望等等，它会令我们会对某一个可以给自己带来满足感的方面过分执着，也有可能一意孤行限制了自己的发展。

数字8还让我们学会应当如何宏观的对待财富，不要让物质限制内在心性的发展。

埃及中数字8的含义在埃及，八是四对原始力量或势力的数字，这四对力量叫做“夜晚”、“昏暗不明”、“秘密”、“永恒”，所以“一”包含了八个(四对)元素。

“德胡提”(Thoth)(汉默斯或麦丘裡)被称作“八之城主宰者”，德胡提(托特) 是神圣智慧的拟人化，他是尼特鲁的信使，也是文字、语言和知识的信使。

德胡提让人能接触到数字八所象徵的有形世界的奥秘。

数字8的财富之意我国民间数字8是象征财富的符号，谐音同发财的“发”。

在数字中8有同样的意义，与财富权力有所关联。

8象征着统治、控制和成就，它是行政决策数。

数字8的永恒之意在西方，数字8象征再生数、复活数、永恒的数，它是创世后的第八天，也是复活节前一周的第八天，基督在这一天复活，西方命理认为，生日带8的人，是个贯彻始终的人，一旦做了决定，定会坚持到底，就不退缩，交际手腕高明，是做大交易的人才。

在塔罗牌里8代表力量，他可以驾驭不易控制的能量，并代表体能上的优越力量，牌正立时，代表个人的魅力以及追求成功的决心，倒立时，则暗喻自满和滥权。

数字8的祈福之意八是宇宙调和统一的标志，世俗的观点认为，八是更新、重生或祈福的象征。

有了8的祈福含义，怎么能少得9的富裕的象征意义呢?这样才算是完美嘛。

8以内加减法口算练习题姓名5－2= 4＋4= 8－2= 5－3= 3－2= 3－2= 6－5= 2＋6= 5＋2= 3－3= 7－1= 7－2= 8－5= 2＋4= 8－5= 7－6= 6－3= 4－1= 4－2= 4－3= 7－4= 2－1= 6－3= 7－2= 8－8= 5－1= 4－4= 8－1= 3－2= 7－6= 4－1= 3＋1= 8－7= 6＋1= 1＋6= 3＋2= 3＋5= 2＋4= 5－2= 1＋3= 7－5= 6－2= 3＋2= 6－5= 6＋2= 5＋2= 8－8= 4－2= 8以内加减法口算练习题姓名8－2= 6－2= 2－2= 4－2= 7－5= 7－7= 7－7= 2－1= 5－4= 7－2= 6－6= 8－1= 4＋3= 2＋5= 5－1= 6－5= 1＋3= 8－6= 7－3= 3－3= 3＋4= 8－4= 3－1= 6－4= 3－1= 8－4= 8－3= 7－3= 7－3= 7＋1= 1＋7= 5－3= 2＋1= 8－5= 4＋4= 5－2= 6＋2= 7＋1= 5＋2= 2＋3= 2＋3= 6－3= 8－5= 1＋1=7－5= 8－3= 1＋4= 6－5= 8以内加减法口算练习题姓名6－5= 3－3= 5－2= 5－1= 7－3= 7－3= 1＋1= 6－1= 4－2= 8－2= 8－3= 1－1= 2－2= 2－1= 4＋4= 5－4= 4－4= 8－2= 8－4= 7－2= 1＋1= 8－7= 4＋4= 6－2= 2＋5= 1＋6= 4＋4= 8－7= 2＋5= 8－6= 6＋1= 8－1= 8－7= 5＋3= 5＋1= 6－4= 1＋5= 7－3= 8－6= 5－2= 6－3= 7－2= 8－4= 1＋3= 5－1= 6－5= 7－2= 1＋7=8以内加减法口算练习题姓名3＋1= 6－4= 6＋1= 2－1= 7－5= 6－3= 4－2= 3＋1= 6－4= 2＋6= 3－3= 1＋2= 3＋2= 2－2= 2＋1= 1＋6= 7－1= 8－2= 5＋3= 7－6= 5－3= 5－2= 5－1= 1＋6= 7－2= 2－1= 8－7= 3＋5= 4－1= 2＋1= 2－1= 7－1= 6＋2= 7－6= 6－3= 8－1=4－2= 6－2= 8－6= 5－3= 6－2= 4－1= 8－5= 3－2= 3－2= 4＋3= 5－5= 5－2=8以内加减法口算练习题姓名7－7= 6－2= 8－7= 8－7= 1＋2= 8－1= 3＋3= 7－2= 8－7= 1＋5= 4－2= 7－1= 5－3= 7－1= 2＋1= 2－1= 1＋2= 6－3= 4－2= 5－2= 6－5= 4－3= 6－5= 7－3= 5－3= 4－4= 4－2= 6－3= 5－4= 4＋1= 2＋4= 5－4= 7－6= 8－5= 4－1= 7－6= 1＋5= 8－4= 1＋3= 8－2= 2－1= 8－2= 3＋1= 1＋1= 4＋3= 1＋5= 6－4= 2－2=8以内加减法口算练习题姓名4－1= 4＋2= 6－2= 2＋5= 7－5= 6－2= 3＋4= 1＋4= 4－4= 3＋4= 7－2= 2－1= 3＋3= 2＋2= 2＋4= 5－2= 3－2= 3＋4= 6－4= 7－6= 2＋5= 6＋2= 1＋5= 5－1= 5－2= 3＋2= 5－3= 8－5=7＋1= 3＋1= 5－4= 8－8= 4＋1= 8－5= 5＋1= 7－2= 8－2= 7－6= 3－1= 6－3= 2＋5= 8－6= 7－1= 2＋3= 8－6= 2＋1= 1＋7= 4－3=8以内加减法口算练习题姓名4－1= 7＋1= 8－8= 1＋5= 8－2= 4－1= 7－2= 4＋4= 4＋4= 2－1= 1＋2= 3－1= 7－6= 2＋1= 5－1= 6－2= 6－3= 4－2= 8－5= 1＋6= 3－1= 8－2= 7－1= 5－4= 5－4= 7－3= 1＋7= 8－6= 6－2= 4＋2= 3＋4= 2＋5= 4－1= 6－3= 5－3= 2＋2= 5－5= 5－3= 3－3= 7－3= 2－1= 2＋3= 8－1= 2－1= 6－2= 7－7= 8－2= 6－3=8以内加减法口算练习题姓名3＋4= 1＋3= 7－2= 7－7= 5－3= 5－3= 5－3= 4＋3= 8－4= 7－1= 4＋3= 8－6= 3＋1= 2＋1= 4＋4= 2－1= 6－5= 1＋1= 5＋2= 8－6=7－1= 3＋1= 1＋1= 3－2= 3－3= 5－3= 8－5= 7－1= 7－5= 2－1= 1＋2= 4－4= 8－4= 4－2= 8－2= 1＋4= 2＋6= 7－5= 2＋5= 1＋7= 8－6= 8－8= 8－7= 6－3= 6－1= 7＋1= 5－3= 8－3=8以内加减法口算练习题姓名8－1= 5＋1= 7－1= 6－6= 7－1= 1＋7= 5－2= 3＋4= 4－3= 5－3= 2＋6= 2＋2= 6－6= 6＋1= 1＋4= 2－1= 7－3= 7＋1= 8－5= 4－2= 3＋2= 8－3= 6－2= 1＋1= 8－6= 3＋5= 7－1= 6－5= 3＋2= 7－2= 7－2= 8－7= 5－2= 4＋1= 7－1= 4－1= 5＋3= 8－4= 3－1= 2＋1= 7＋1= 2－1= 1＋2= 7－5= 6－1= 8－8= 6－2= 4＋4=8以内加减法口算练习题姓名8－3= 3－2= 5－3= 3＋1= 6－1= 8－4= 8－7= 6＋1= 8－4= 6－2= 7－6= 8－5=1＋3= 3－2= 4＋2= 5－4= 7－6= 4－1= 3＋3= 3－2= 3＋3= 8－8= 3－1= 2＋4= 4＋3= 3－2= 4＋3= 7－6= 2＋5= 5－5= 8－5= 6＋2= 5－2= 3＋3= 8－3= 1＋4= 4＋2= 6－3= 7－5= 1＋1= 2＋6= 8－4= 2＋3= 5＋2= 3＋2= 1＋4= 4＋2= 7－6=8以内加减法口算练习题姓名1＋5= 8－2= 8－1= 5＋1= 5－4= 5－1= 3＋5= 2＋2= 3－2= 5－5= 5－4= 2＋6= 2＋3= 8－2= 7－3= 1＋5= 8－1= 3＋5= 4－2= 4＋1= 3＋5= 7－1= 5－4= 6－1= 6－4= 6－5= 8－1= 5－4= 5＋3= 4＋4= 7－6= 5＋2= 4－3= 5－1= 3＋4= 4－2= 8－1= 7－1= 3－2= 8－7= 7－1= 2＋6= 7－5= 7－2= 7－7= 1＋5= 3－3= 7－5=8以内加减法口算练习题姓名5－1= 5－4= 2－1= 4＋2=6－3= 1＋3= 2＋2= 3－2= 5－2= 8－6= 7－4= 2＋1= 7－2= 3＋5= 7＋1= 6－4= 7－1= 4－2= 8－7= 1＋1= 1－1= 8－1= 6－1= 1＋2= 3＋1= 4－3= 7－6= 6－3= 4－3= 7－5= 5－2= 3＋1= 7－3= 8－3= 6＋2= 5＋1= 8－6= 8－2= 5－1= 6－4= 7－6= 5－1= 1＋5= 4－2= 8－1= 3－3= 2＋1= 3＋4=8以内加减法口算练习题姓名7－1= 4－4= 5＋3= 6－5= 7－4= 3－2= 7－5= 4＋2= 6－2= 8－6= 2＋4= 8－1= 5－3= 1＋6= 6－5= 3＋2= 8－3= 8－7= 6－4= 8－4= 2＋1= 8－6= 4－1= 6－3= 8－6= 7－2= 8－4= 6－2= 6－1= 1＋3= 5－4= 8－4= 6－4= 5－2= 1－1= 2＋6= 8－1= 1＋5= 8－5= 5－2= 2＋6= 4－3= 5－2= 6－6= 3－1= 3－2= 6＋1= 1＋5=8以内加减法口算练习题姓名1＋5= 5－4= 2＋4= 7－1= 7－2= 1＋2= 5＋2= 6－3= 5－4= 7－3= 1＋5= 1＋4= 1＋7= 1＋3= 6＋1= 8－3= 1＋5= 3－2= 8－1= 1＋5= 8－7= 3＋4= 6－1= 5＋3= 8－5= 3－1= 7＋1= 7－5= 2－1= 7－7= 1＋6= 6－6= 4－1= 2－1= 7－2= 7－4= 8－7= 1＋6= 4＋1= 8－1= 1＋2= 7－5= 3－2= 3＋2= 7－4= 5＋2= 5－4= 3＋5= 8以内加减法口算练习题姓名6＋1= 4＋3= 3－1= 6＋1= 8－2= 4－2= 3－1= 5－1= 6＋1= 7－4= 3－2= 1＋5= 6－5= 5－3= 3＋1= 3＋5= 2＋5= 5－2= 8－4= 3－3= 3＋4= 8－7= 7－3= 5＋1= 6－1= 4＋2= 7－1= 1－1= 1＋3= 8－4= 6－6= 3＋4= 8－4= 4－1= 8－4= 8－3= 8－8= 5＋3= 7－1= 7－1= 5＋2= 8－2= 5－1= 8－7= 2＋4= 6－1= 5＋2= 7－4=8以内加减法口算练习题姓名2＋1= 6－1= 5－4= 3＋3= 8－5= 5＋2= 2＋1= 8－5= 7－4= 2＋3= 6－3= 2＋6= 1－1= 3＋3= 8－4= 2＋1= 6－2= 7－5= 6－4= 5－3= 2＋3= 6－4= 2＋1= 7－5= 4＋3= 5－3= 2＋1= 2＋2= 5＋1= 5－3= 5－4= 3＋3= 8－4= 5－3= 1＋1= 8－3= 4－1= 8－8= 4－4= 5＋2= 5＋2= 7＋1= 4＋3= 2＋4= 3－1= 6－2= 7－1= 7－6= 8以内加减法口算练习题姓名8－6= 3＋5= 3－1= 2＋5= 7－3= 7－2= 8－2= 5－2= 2＋3= 8－5= 8－7= 6－3= 6＋1= 6－1= 6－2= 4＋1= 3＋3= 1＋4= 6－4= 5－1= 1＋6= 7－1= 4－3= 6－2= 3＋3= 4＋1= 1＋4= 4＋2= 2＋1= 6－3= 5－5= 6－3= 3＋1= 8－7= 1＋1= 8－3= 1＋2= 7－5= 6－6= 7－1= 3－2= 6－5= 2＋5= 4－1=4－2= 8－2= 8－2= 7－5= 8以内加减法口算练习题姓名6－1= 5＋1= 6－1= 4－4= 8－3= 5－4= 2－1= 4－3= 5－4= 7－6= 6－6= 5－3= 6＋1= 4－1= 1＋3= 6－3= 6－4= 4－2= 4－3= 8－7= 8－2= 8－8= 5－4= 7－5= 6－1= 5－1= 3＋2= 7－1= 2＋6= 1＋3= 5－1= 1＋3= 2＋5= 8－2= 6－5= 1＋3= 8－3= 2－1= 4＋4= 5－4= 8－4= 1＋2= 8－4= 8－5= 7－6= 5－4= 4＋2= 2＋5=8以内加减法口算练习题姓名6＋1= 8－6= 4－3= 3＋4= 5－4= 5－3= 2＋1= 5＋1= 4－3= 4－3= 6－5= 3＋5= 6－4= 5－2= 6－2= 6－2= 3－1= 6－3= 2＋6= 3＋3= 4－1= 3＋1= 5－4= 5＋3= 8－7= 5－1= 8－8= 5－4= 4＋2= 6－1= 2－2= 3－2= 6－2= 3－1= 5－3= 4＋4=3＋3= 7－2= 6－1= 5－4= 1＋6= 7－2= 8－3= 6－3= 4－2= 1＋3= 1＋1= 7－3=8以内加减法口算练习题姓名6－2= 2－1= 7－6= 3＋3= 1＋6= 3－2= 7－2= 4－2= 1＋1= 5－2= 5－4= 2＋3= 4－1= 2＋6= 2＋1= 8－7= 4－3= 7－2= 3＋3= 1＋5= 4＋3= 7－2= 1＋7= 1＋7= 3＋4= 6－6= 1－1= 2－1= 5－4= 5－2= 2－1= 5－4= 7－5= 6－1= 2＋3= 3－1= 5－4= 4－1= 7－3= 8－6= 1＋5= 6－6= 8－4= 5－1= 1＋2= 5＋2= 5－5= 5－1=。

台球规则（抢⿊8）--转载定义：⾃由击球权1.⼀⽅犯规时，对⽅可将主球置于台⾯任意位置开始击球。

2.线的⾃由球是指开球⼀⽅犯规时，获⾃由球的⼀⽅只能将主球在开球线后任意放置，并只可击打开球线与顶边之间的任意⽬标球。

⼀、⽐赛⽅式8球⽐赛使⽤同⼀颗主球（⽩⾊）及1到15号共15颗⽬标球，1到7号球为全⾊球，8号为⿊⾊球，9到15号为双⾊球（⼜称花⾊球）。

⽐赛双⽅按规则确定⼀种球（全⾊或是花⾊）为⾃⼰的合法⽬标球，在将本⽅⽬标球全部按规则击⼋袋中后，再将8号球击⼊袋的⼀⽅获胜该局。

若⼀⽅在⽐赛中途将8号球误击⼊袋或将8号球击离台⾯，则对⽅获胜该局。

⼆、器材1.球台：内沿尺⼨2540mm×1270mm，从地⾯到库边顶部⾼度为800mm－－850mm。

2.球杆：须符合中国台球协会认可的标准。

3.架杆：⽐赛须采⽤赛会所提供的。

4.置球点：球台长边中线上距顶库635mm的点。

5.开球线：平⾏于球台底库，距底边450mm,并与左右两库相交的直线。

6.开球区：由赛事组委会在台⾯上画出的有效开球区（⼀般出现在职业赛事上）。

三、.摆放球开球前⽬标球排列为三⾓形，共5排，每排球数分别为⼀⾄5颗。

第⼀排的1颗球置于‘置球点’，8号球位于第三排的中间位置，其它⽬标球全⾊和花⾊间隔开随意摆放，但必须彼此紧贴。

⽐赛双⽅均有权检查球摆放是否符合规则，并要求修正。

四、开球1.⾸局开球权的确定由双⽅在开球线后同时分别向底边击打同⼀规格的两颗主球，碰底边弹回后静⽌。

球离顶边较近的⼀⽅获得开球权。

若击出的球未触底边或⼊袋则为犯规，由对⽅获开球权；若双⽅球离顶边距离相同可⽆法判定或双⽅犯规，则重新进⾏直到⼀⽅获开球权。

2.竞赛组委会可在赛前确定多局⽐赛时为双⽅轮流开球或由胜⽅开球。

3.开球后，必须使任何⼀颗⽬标球⼊袋或⾄少4颗⽬标球碰触台边。

若开球后主球跳离台⾯或主持⼊袋或碰触台边的⽬标球数少于4颗，则为犯规。

违反本项规则的处罚：对⽅可要求摆球，由⾃⼰或犯规⽅重新开球；或对⽅获线后⾃由击球权。

Unit 8 听力原文Part ICAn easy way to remember how much we need to exercise for fitness is to keep in mind the letters F, I and T:Frequency --- 3 to 5 days a weekIntensity—till your heart rate reaches your target speedTime -15 to 60 minutes each timeThen you may ask how to work out your target heart speed range. Let's do it together.The upper limit of your target heart speed range is 190 minus your age.The lower limit is 160 minus your age.For someone who is 20 years old, for example, his target heart speed range would be between 140 beats per minute (160-20) and 170 beats per minute (19~20).Once you've got your target speed range, you may start checking whether your exercise gives you the fitness effect.First, warm up with five minutes for stretch exercises. Then start your energetic exercise (e.g. jogging). About 10 minutes after starting energetic exercise, stop and check your pulse rate (whichis the same as your heart rate). Finally, count your pulse beats forl5 seconds and multiply by four.Remember to take your pulse rate as soon as you stop. If you wait even 30 seconds, the rate will have begun to slow and will not be accurate.You are getting the fitness effect if your pulse rate is in your target heart speed range.Part II The digestive system and diarrheaAEvery now and again, a stressful situation may arise the course of our school, home or community life. Often, the situation involves disagreements between people.Sometimes, the situation involves work difficulties—not knowing how to solve a problem or having to make a difficult decision. At other times, it involves money—not having enough to spend or disagreement over what to spend on.That is why relationship problems, work-related problems and money problems are three well-known situations that cause stress. So knowing how to handle people, learning how to solve problems or make decisions, and living within our income all help to control stress.Here are four ways to help you control stress from situations.Clue #1: Be kind, loving and polite to your parents, grandparents, brothers and sisters. Make time to talk, play and relax together.Clue #2: Treat others the way you would like them to treat you. Smile, chat, laugh and do things together. Learn to cooperate, share and make sacrifices for others.Clue #3: Do not keep your worries to yourself. Talk them over with someone you respect. Two heads are better than one.Clue #4: Think of the good and bad points of each choice. Be guided by facts and not your feelings. Choose together with the people who will be affected by the results. In this way, they will see how the choice is made and be more willing to bear with the bad points.CThere are many explanations of why people catch colds. Some say colds are caused by the environment. Others say colds can result from smoking too much, lack of exercise, not enoughrest, poor diet, or working too hard. But new studies suggest that people who feel extreme tension for a long period of time also may be at a higher risk of developing a cold. The researchers notethat stress is not the cause of all colds. But studies show that people who suffer from the stress caused by serious personal problems are more likely to get sick than those who do not.Researchers have spent years trying to find out why some people have colds more often than others. An earlier study directed in 1991 showed that emotional stress can lead to colds. In current studies, researchers at the University of Pittsburgh studied almost 300 people, ages 18 to 55. They were given physical, social and mental and emotional examinations. Then live cold viruses were placed in their noses. During the next five days, they were examined to find out who became infected by the virus and then developed signs of a Cold. Such signs include coughing, sneezing and a blocked nose. Stress lowers resistance, but just how it does is unknown. So in this study, the researchers look for the kinds of stress involved and how they might have affected resistance to colds. The study found that severe stress lasting a month or more increased the risk of a cold. Two causes of stress—losing a job or having difficulties with family members or friends—increase the risk the most.Part III “So you wanna keep fit, huh?”Exercise keeps you fit and healthy. Exercises should be done three to five times a week. Exercise for at least 15 to 30 minutes each time. However, a good exercise plan should include warming-up exercises before and cool-down exercises after vigorous activity. Both of them should last five to ten minutes. These exercises, such as head tilt, arm circles, side bend and toe touch, stretch your muscles and make them move more easily. They prepare you for vigorous activity and help your body slowly return to its normal breathing and heart rate after vigorous activity. Andhere comes Crystal Collins.Hi there! I'm Crystal Collins, and I'm very happy to share some time with you. So, you wanna keep fit, huh? Well, you sure came to the right place! Together we can keep fit and healthy, and be more successful. It's easy. Everybody can do it, you hear?Just remember the five golden rules:Number one. Always wear loose and comfortable clothes when you're exercising. You needto feel comfortable and relaxed.Number two. You should always do some simple warming-up exercises first. To get your body ready for the real thing.Number three. Never try to do too much exercise too soon. Take it nice and easy now, you hear? There's no rush about this.Number four. Don't forget to relax completely for about five minutes when you've finishedyour-workout. You need to rest a little bit after you've been exercising.And here is golden rule number five. Stop immediately if you feel any pain in your chest, throat, neck or head.Part ⅣMore about the topic: Subhealthstressed out:very tense and anxious because of difficulties in their lives. (INFORMAL) 紧张的,有压力的borderline: the point at which one quality, situation, emotion etc ends and another begins.i.e. She slipped over the borderline into sleep.exposure: when someone is in a situation where they are not protected from something dangerous or unpleasant.exposure toi.e. Prolonged exposure to the sun can cause skin cancer.fatigue: a feeling of extreme physical or mental tiredness. 疲倦,疲乏,疲劳endocrinopathy: [end?ukrai'n?p?θi] n. [医]内分泌病] n. 神经衰弱症neurasthenia: [nju?r?s'θi:ni?climacteric: [klai'm?kt?rik] 更年期insomnia: Someone who suffers from insomnia finds it difficult to sleep.agitation: If someone is in a state of agitation, they are very worried or upset, and show this intheir behavior, movements, or voice.不安，焦虑cardiovascular: [kɑ:di?u'v?skjul?] adj. 心脏血管的palpitations: /p?lp?'te???nz/ n [plural] if you have palpitations, your heart beats quickly in an irregular way急速不规则的跳动;心悸]名词‘医’心律不整; 心脏跳动不规则arrhythmia: [?'riθmi?aquatic: living or growing in water, e.g. an aquatic planttrace element: a chemical element such as iron or zinc that occurs in very small amounts in living things and is necessary for normal growth and development. ‘生物’(动植物所不可欠缺的) 微量元素indispensable: essential; too important to be without: Cars have become an indispensable part of our lives.digestive tract: 消化道Feeling stressed out lately? Has the doctor said he cannot find anything wrong with you? Perhaps he sent you to a hospital, but all the fancy equipment there show that there is nothing wrong. Then consider this, you might be in a state of subhealth. Subhealth, also called the thirdstate or gray state, is defined as a borderline state between health and disease. According to an investigation by the National Health Organization, over 45 percent of subhealthy people are middle aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam-time, due to their heightened exposure to stress. Subhealth comes under several clinical names, including fatigue syndrome, endocrinopathy, neurasthenia, and climacteric syndrome. Symptoms include a lack of energy, depression, slow reactions, insomnia, agitation, and poor memory. Other symptoms include shortness of breath, sweating and aching in the waist and legs. In addition, cardiovascular diseases such as palpitations and arrhythmia may appear. The key to preventing and recovering from subhealth, according to some medical experts is to form good living habits, alternate work with rest, exercise regularly,and take part in open air activities. As for meals, people are advised to eat less salt and sugar. They should also eat more fresh vegetables, fruits, fish and aquatic products because they are rich in nutritional elements--vitamins and trace elements--that are indispensable to the body. Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract. They also say that a balanced diet is very helpful in avoiding subhealth.Part V Memory test: How to Keep Your Liver HealthyThe liver does so much for your body that without it, you wouldn’t last longer than 24 hours. Its functions are so vital that if it falls into poor health, the rest of your body falls into poor health.In this video, we’re going to discuss in greater detail how to keep your liver healthy because a happier liver means a happier you. If you like to drink, be sure to do so in moderation. Drink aslittle as possible although one glass of red wine a day is acceptable and can even help your body. However, avoid hard liquors such as scotch, whiskey and vodka, which actually cause the most damage to your liver. Eat liver-healthy foods. Now we will be going to much more detail on healthy liver foods, liver diets and even liver cleanses in later videos, but it’s important that you eat foods rich in antioxidants such as kale, spinach, blueberries, broccoli, cauliflower and cabbage. These foods will help your liver detoxify damaging chemicals that are currently in your body. Drink lots of water. Water is a great natural detoxifier. Water will flush toxins from your body, and give your liver a much needed break. This next suggestion can be tough for many, but by cutting down caffeine-rich stimulants, such as coffee, soda and tea, will also reduce the amount of work your liver has to put into removing toxins in your body as well. Exercise regularly, even if it’s lightly. Getting out and exercise regularly increases liver activity by causing you to sweat and get your liver to push toxins out as you do. It’s like a jumpstart for your liver. Exercise does much more for you and your body beyond a healthy liver and is always a good idea if you want to stay healthy.。