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2011年高考重庆理综卷第21题:某行星和地球绕太阳公转的轨道均可视为圆.每过N年,该行星会运行到日地连线的延长线上,如图1所示.该行星与地球的公转半径之比为
2011 college entrance examination in Chongqing Volume 21: a planet and the Earth orbiting the sun orbit can be regarded as a circle .Every N years, the planet will run to extend the line connecting the day, as shown in Figure 1 The ratio of the planet ’s revolution radius to the earth is