题目

若 与 互为相反数, 与 互为倒数, 的平方为4,求 的值. 答案:解:根据题意得: a+b=0,cd=1,e=±2 , 则原式= 4−2019+1=−2014 .根据汉语完成句子【1】凯特每天努力去学习一些新的东西。Kate ______ ________ _______to learn something new every day.【2】当我第二次英语考试不及格的时候,我的妈妈发怒了。When I failed the English exam the second time, my mother _______ _______.【3】到家之后,杰克脱下他的外套,然后躺在床上。After getting home, Jack _______ _______ his coat then lay on the bed.【4】我们顺便进入这个俱乐部看看比尔是否在那里,但是他不在。We _______ _______ the club to see if Bill was there, but he wasn’t.【5】毕竟他是你的爸爸。你不应该那样对待他。_______ _______,he is your father. You shouldn’t treat him like that.
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