设f(x)=1+xx,(x<0)log12x,(x>0),则f(x)≥12的解集 发布时间:2017-05-05 16:04 │ 来源:www.tikuol.com 题型:选择题 问题: 设 f (x)=1+xx,(x<0)log12x,(x>0),则f (x)≥12的解集是( )A.(-∞,-2]∪[22,+∞)B.[-2,0)∪(0,22]C.[-2,0)∪[22,+∞)D.(-∞,-2]∪(0,22]
题型:选择题 —Do you think it’s going to rain over the weekend? —______. We’re planning to go on a picnic.A.I think soB.I believe notC.I don’t think soD.I hope not 查看答案