2015年6月,有甲、乙、丙、丁四架飞机以同样的速度沿所在纬线自西

20156月,有甲、乙、丙、丁四架飞机以同样的速度沿所在纬线自西向东飞行(如下图)据此回答910题。

9.四架飞机运动角速度最慢的是

A.甲                  B.乙                       C.丙                      D.丁

10在丙飞机上空俯视地球绘制的地球运动的投影图正确的是

答案

CB

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