2D【解析】Mg比Fe活泼,则常温下在空气中金属镁比铁容易氧化,A项正确;Fe比Cu活泼,则在氧气中灼烧时,铁丝比铜丝反应剧烈,B项正确;zn比Fe活泼,则与同种盐酸反应时,锌片比铁片反应剧烈,C项正确;Cu比Ag活泼,铜能与硝酸银溶液反应得到银,D项错误。

第二节One possible versionDear Mr. TomIm writing to invite you to be present at the recitationcontest organized by the reading club at 3: 00 next Wednes-day afternoon in the lecture hall. If available then. couldyou do us a favor? And we would appreciate having you as ajudge. By the way, it would be very nice if you can recommend some classic English literary works suitable for usstudentsanks for considering our requestIm looking forward to your reply at your earliest con-venience lYours sincerelyLi Hua

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