2022英语周报七年级60期答案

1.C硅肺的原因与肺泡处吞噬细胞的溶酶体被硅尘破坏有关,平所以A错误;原核细胞没有生物膜系统,所以B错误;内质0中网膜和细胞膜、核膜直接相连,并且它们的组成成分都是脂质和蛋白质为主,所以C正确;口腔上皮细胞中的生物膜除了细胞膜还有细胞器膜和核膜,所以提取的磷脂分子在空气和水的界面上展开的面积远大于细胞表面积的两倍,所平本以D错误。

写作Dear TonyYou say you have dimeulty adap ting to the new study and life herelow exactly how you feel.(表示关心) You must be very anxious,butqui te normal since this is your first time to study in a foreig【高分句型-】 Just relax. First, break bearning goaIs into small stepsen get involved in school activities, wherou can make more friends.【高分句型二】(帮他分析原因Hopefully my sugsestions would be helpfum always the person youcan count on提供建议)s t

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