7.在金星上一天比一年都长。
To puzzle this out, remember that one day is how long it takes for a planet to rotate on its own axis, and one year is how long it takes for a planet to rotate around the sun. Venus takes about 243 Earth Days to spin around just once (and in the opposite direction as the Earth, by the way) and 225 Earth Days to go around the sun. So a day is longer than a year.
要想弄清楚这个问题,就要记住,一天是星球自转一周的时间,而一年是星球围绕太阳公转一周的时间。金星需要243个地球日才能自转一周(顺便说一下,它的旋转方向与地球相反),而绕太阳一周需要225个地球日。所以在金星上一天比一年长。
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2020-09-15
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