2022英语周报九年级广州第一期。答案

书面表达One possible versionDear Mr. Smith.First of all, I would like to congratulate you on your school s sixtieth anniversary. The long history of theschool brings up its outstanding campus culture and educational concept. I take great pride in studying at thisexcellent school. At your invitation, I will perform a Chinese folk dance at the celebration ceremony to expressmy congratulations. Please prepare the audio equipment to play the accompanying music. I will prepare thedance music and costumes myself. I am delighted to be able to make a modest contribution to the promotion ofChinese culture and cultural exchanges between China and the UKBest wishes.Yours truly,Li Hua

2C【解析】根据题意知()=1。2=∴:g(1)=[f(1)]f(-1)]+121,∵g(1)≠g(-1),g(1)≠-g(-1),∴函数g(x)既不是奇函数也不是偶函数,A错误;∵f(-x)f(x)f(x)是奇函数,B正确;由复合函数的单调性知f(x)=2-1+e在R上是增函数,C正确;∵er>0,∴1+e>1,∴g(x)=Lf(x)]={-1,0},D错误.故选BC.

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