题目:
完形填空 | ||||
1 weekends, I often go to movies 2 my friend, David. My 3 movie star is Jackie Chan. He’s a great 4 . He has a new movie, Speed. It’s a very 5 action movie. I think it’s exciting. Jack likes Michele Yan(杨紫琼) 6 . He likes her famous movie, Sleepless Night. It’s a thriller. I don’t think it’s great. 7 , it’s boring. One thing is interesting. Jack 8 likes Beijing Opera. He often 9 me, "Beijing Opera is really 10 !" My father likes it too. He even wants to be a Beijing Opera artist! | ||||
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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为了让单摆做简谐运动,应让单摆从平衡位置拉开约5°释放,故该操作恰当.②单摆通过最低点的速度最快,为了减小测量时间的误差,应在平衡位置开始计时.故该操作恰当.③用秒表记录摆球一次全振动的时间作为周...