题目

Today, we will begin____________we stopped yeaterday so that no will be left out. A.when                            B.where C.how                             D.what 答案:B 解析: 考查状语从句。由句意:今天,为了不遗漏要点,我们从昨天结束的地方开始。where 引导地点状语从句。设函数f(x)=|x﹣a|.(1)当a=2时,解不等式f(x)≥7﹣|x﹣1|;(2)若f(x)≤1的解集为[0,2], =a(m>0,n>0),求证:m+4n≥2 +3.
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