You don’t need to describe her. I _____ 发布时间:2017-05-04 16:18 │ 来源:www.tikuol.com 题型:选择题 问题: You don’t need to describe her. I _____ her several times.A.had metB.have metC.metD.meet
题型:选择题 已知函数f(x)=2x-m(m∈R),g(x)=ax2+12ax+1(a∈R),h(x)=2|x-a|(Ⅰ)设A:存在实数x使得f(x)≤0(m∈R)成立;B:当a=-2时,不等式g(x)>0有解.若“A”是“B”的必要不充分条件,求实数m的取值范围;(Ⅱ)设C:函数y=h(x)在区间(4,+∞)上单调递增;D:∀x∈R,不等式g(x)>0恒成立.请问,是否存在实数a使“非C”为真命题且“C∨D”也为真命题?若存在,请求实数a的取值范围;若不存在,请说明理由. 查看答案
题型:选择题 Journalists should base what they report____ facts, not just_____ they imagine to _____. [ ]A. on; something; be B. with; everything; have C. on; anything; be D. by; something; do 查看答案