()的形成标志着闽学的确立。 A.廉学 B.洛学 C.关学 D.朱熹学说 发布时间:2018-10-03 14:08 │ 来源:www.tikuol.com 题型:单项选择题 问题: ()的形成标志着闽学的确立。A.廉学B.洛学C.关学D.朱熹学说
题型:单项选择题 已知f(x)=kxlnx,g(x)=-x2+ax-(k+1)(k>0).(Ⅰ)求函数f(x)在[t,t+2](t>0)上的最小值;(Ⅱ)对一切x∈(0,+∞),f(x)≥g(x)恒成立,求实数a的取值范围;(Ⅲ)证明:对一切x∈(0,+∞),都有lnx>1ex-2ex成立. 查看答案
题型:单项选择题 Ten years ago the population of our village was ____ that of theirs. [ ]A. as twice large as B. twice as large asC. twice as much asD. as twice much as 查看答案