Wang: I've got an appointment. I'm going to meet a friend in London at 3 p. m. It's already a quarter past ______. David: I'm going to London. I can give you a lift if you like. Wang: Could you really? That would be great.
A.
I'll never make it
B.
I'll never do it
C.
I'll never reach it
D.
I'll never attain it
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参考答案:
举一反三
【简答题】设函数 (1)求 的单调增区间和单调减区间; (2)若当 时(其中 e =2.71828…),不等式 恒成立,求实数m的取值范围; (3)若关于x的方程 上恰有两个相异的实根,求实数 a 的取值范围。