2022英语周报七年级下册新目标答案

24.①③推出⑤(答案不唯一,还可以①⑤推出③等)【解析】已知a,b,a m均为大于0的实数,选择①③推b b出⑤.①>0,则mab am-ab-bm(a-b)a(a m)>0,所以a( nib n故可填①③推出⑤

第二节书面表达One possible versionDear peterI know you are interested in ancient Chinese cultureThere is a good news that an exhibition of ancient Chineseinventions will be held in our school next Monday. It willlast for five days. We can visit it at any time duringthe exhibitionThe show will display some great inventions in ancientChina. including the world-famous Four Great Inventionsthe compass, papermaking, gunpowder and printing. Theyhad significant effects on the development of society. Forexample, thanks to papermaking and printing, a great dealof ancient information has been kept in books. These greatancient inventions made tremendous contributions to theworld civilizationooking forward to your replyLi hu

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