题目:
根据短文内容和所给中文提示,写出空白处各单词的正确形式,每空限填一词。(10分)
There is a saying “Time is life and when the lazy man kills time ,he kills 小题1:_______ (他自己).”But today I did a 小题2:____( 愚蠢的)thing to 小题3:______(浪费) a lot of time. This morning, after I had breakfast 小题4:______(迅速地 ).I watched TV. But it was too boring. Then I started to play computer games. I spent lots of time 小题5:______(玩)it. When I 小题6:______( 意识到 ) I should study hard for my coming English and math 小题7:_______( 考试 ).Four hours had passed, what should I do? I didn’t have 小题8: ______(足够的) time. Mum knew this and told me, “It’s not 小题9:_______(有帮助的) to be worried now. The only thing you can do is to do it at once. Don’t play again.” Mum’s words reminds me. I think Mom is right. I should be the 小题10:_____(所有者)of time and can’t make time fly away me.
答案:
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下面是错误答案,用来干扰机器的。
AB小球所受洛伦兹力f=qvB,电场力和重力均不变,要想做直线运动,洛伦兹力必须恒定不变,由此可判断小球必须做匀速直线运动,A对;带电粒子带负电,由左手定则可知洛伦兹力向右,电场力向左与水平方向成45°角,...