题目

,则f(f(2))的值为____________. 答案:【答案】2【解析】先求f(2),再根据f(2)值所在区间求f(f(2)).由题意,f(2)=log3(22–1)=1,故f(f(2))=f(1)=2×e1–1=2,故答案为:2.There is a lot of smoke coming from the lab. Mr Wang ________be doing an experiment. A.mustB.shouldC.wouldD.might
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