I was too careless. If only I ___ my car_爱下问搜题

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问题选择题

I was too careless. If only I ___ my car!

A．hadn’t lost

B．would not have lost

C．didn’t lose

D．haven’t lost

答案

答案：A

填空题

曲线f(x)＝x²＋3x在点A(2,10)处的切线的斜率为________．

选择题

—Are candy and ice cream unhealthy food?

—______ . [ ]

A. Yes, they aren't

B. Yes, they are

C. No, they are

D. No, they aren't