函数y=x2+2x+3(x≤-1)的反函数为( ) A.y=1-x-2(x≥2)B 发布时间:2017-05-11 11:01 │ 来源:www.tikuol.com 题型:选择题 问题: 函数y=x2+2x+3(x≤-1)的反函数为( )A.y=1-x-2(x≥2)B.y=-1-x-2(x≥2)C.y=1+x-2(x≥2)D.y=-1+x-2(x≥2)
题型:选择题 8. We missed our train, and ___ the next train was delayed, ____ we had to wait for two hours.A.on top of that; in that caseB.as a result; so thatC.because; thereforeD.what was worse; in which case 查看答案
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