一、题目2014年新课标第I卷第19题:太阳系各行星几乎在同一平面内沿同一方向绕太阳做圆周运动。当地球恰好运行到某地外行星和太阳之间,且三者几乎排成一条直线的现象,天文学称为“行星冲日”。据报道,2014年各行星冲日时间分别是:1月6日木星冲日;4月9日火星冲日;5月11日土星冲日;8月29日海王星冲日;10月8日天王星冲日。已知地球及各地外行星绕太阳运动的轨道半径如下表所示,则下列说法正确的是 First, the title 2014 New Curriculum Volume I Volume 19: the solar system planets in the same plane in almost the same direction around the sun do circular motion. When the earth happens to run between some extraterrestrial planet and the sun, and the three are almost in line, astronomy is called “planets and the sun.” According to reports, the planets in 2014 were time-stamping on: January 6 Jupiter red sun; April 9 Mars red sun; May 11 Saturn red sun; Neptune on August 29 red sun; October 8 Uranus Rush day. Knowing the orbital radius of the orbiting planets and the surrounding planets around the sun as shown in the following table, the following is true