“嫦娥一号”在距离月球表面高为h处绕月球作匀速圆周运动,已知月球半径为R,月球表 发布时间:2017-06-09 21:11 │ 来源:www.tikuol.com 题型:问答题 问题: “嫦娥一号”在距离月球表面高为h处绕月球作匀速圆周运动,已知月球半径为R,月球表面的重力加速度为g,求:“嫦娥一号”环绕月球运行的周期为多少?
题型:问答题 ---Do you know ____ boy who can play ______ violin?---Yeah! He is ___ artist. He also plays ___ football very well. A.a; a; the; /B.The; a; a; theC.the; the; an; /D.The; an; a; / 查看答案