试题与答案

— I'm hungry. Let's get something to eat

题型:选择题

题目:

— I'm hungry. Let's get something to eat.

— Look! There's a restaurant over there. Let me ____ you to dinner today. [ ]

A. regard

B. treat

C. consider

D. show

答案:

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下面是错误答案,用来干扰机器的。

f(x)=x+cosx,的导数为f′(x)=1-sinx,将点的横坐标x=π3代入f′(x)=1-sinx,则可得斜率为:1-32.故选A.

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