..公民科学素质知识测试题及答案1．地球绕太阳公转一圈的时间是（ B ）。
A、1天B、1年C、1.9年2．地球自转一圈的时间就是（ C ）。
A、24小时37分B、1年C、1天3．地球公转产生了（B ）的交替，地球的自转产生了（C ）的交替。
A、雨季、旱季B、春、夏、秋、冬四季C、白天和黑夜D、大陆板块分裂、漂移4 ．月亮是（ B ）而发亮。
A、本身发光B、反射太阳光C、反射恒星光5．在宇宙中，只有（B ）才能发光。
A、行星B、恒星C、流星6．太阳系中的行星、小行星、彗星都是（B ）旋转的，这些天体在运行轨道上距离太阳最远的那一点叫做（F ），距离太阳最近的那一点叫做（ E ）。
A、绕地球B、绕太阳C、远星D、近星E、近日点F、远日点7．地球和太阳系中的每颗行星一样，都沿着自己的椭圆轨道环绕太阳旋转。
地球在远日点时距离太阳15210万千米，近日点时14710万千米。
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