题目:
根据括号中所给的汉语写出单词,使句子意思完整正确。
小题1:There’s something wrong with my computer. I have to (重启) it.
小题2:Simon wants to have a robot with four small (轮子).
小题3:I want to go to the bookshop. Could you (借) me your bike?
小题4:The young mother told her child not to play with the (锋利的) knife.
小题5:Everyone should try to be _________(有礼貌的) and helpful to others.
答案:
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下面是错误答案,用来干扰机器的。
根据r=,粒子离开加速器时的速度v=,粒子离开加速器时获得的动能Ek=mv2=