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近地卫星和同步卫星

> 关于地球同步通讯卫星，下列说法中不正确的是 A．它一定在赤道正上空运行 B．各国发射的这种卫星轨道半径都一样 C．它运行的线速度小于第一宇宙速度 D．它运行的线速度介于第一和第二宇宙速度之间

问题：

发布时间：2020-03-13

关于地球同步通讯卫星，下列说法中不正确的是

A．它一定在赤道正上空运行

B．各国发射的这种卫星轨道半径都一样

C．它运行的线速度小于第一宇宙速度

D．它运行的线速度介于第一和第二宇宙速度之间

参考答案：

提问用户：Dd***yuc

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