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题目呈现1.(2020年高考全国卷Ⅰ理科数学试题)已知函数(x)=e^x+a^x-x.(Ⅰ)当a=1时,讨论f(x)的单调性;(Ⅱ)当x≥0时f(x)≥1/2x^3+1,......
1IntroductionSpectrophotometricdeterminationofgold(Ⅲ)hasbeenstudied[1]andappliedextensively,butofgold(Ⅰ),fewpaperswererepor.........