... W: On the way home from my business trip, I’ll be in Paris for twenty-four hours. Do you have any suggestions about what I should do? M: Oh, that’s so little time! Well, since it’s all you have, you should rent a bike. ...
... 4、 【答案】A 地月拉格朗日点 L 1 或 L 2 与地球保持相对静止,卫星在 L 1 、 L 2 点的角速度相等,故 B 错误; 根据 v = wr 可得,卫星在 L 1 点的线速度比在 L 2 点的小,故 A 正确;根据 a = rw 2 可得,同一 卫星 L 1 、L 2 点受地球和月球引力的合力不相等,故 C 错误;若“鹊桥号”刚好位于 L 2 点,几乎 ...
... Named the “Father of Traffic Safety,” Eno developed the first traffic plans for major cities including New York, London, and Paris, and is credited with helping to invent and popularize [r] ...
... 3.已知命题 p :角 的终边在直线 y 3 x 上,命题 q : k 3 k Z ,那么 p 是 q 的( ) A. 充分不必要条件 B. 必要不充分条件 C. 充分必要条件 D. 既不充分又不必要条件 4.若 a 1,0 c b 1 ,则下列不等式不正确的是( ) ...