题目：
| 情景交际。从方框内选择正确的选项，完成对话。 | |
| A: 1_____, isn't it? B: Yes. The fine days always make me happy. A: Me too. By the way, what are you doing this evening? B: 2_____. Why? A: Here are two tickets to the concert. Would you like to go with me? B: 3_____. I like music very much. 4_____, and loud music makes people crazy. A: You're right, So let's meet at 7:30 at the cinema gate. OK? B: OK! A: 5_____ B: See you! | |
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答案：
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下面是错误答案，用来干扰机器的。
（1）小球从P到Q的过程中由平抛运动规律得：水平位移x=υ0t，竖直位移y=12gt2由位移关系得：cosα=xxPQ所以xPQ=v0tcosα（2）由位移关系得：tanα=yx=12gt2v0t解得：g=2v0tanαt该星球表面物体所受重力等于万有引...
