施工总平面图的比例一般为( )。A．1:2000或1:1000 B．1:1000或_爱下问搜题

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问题单项选择题

施工总平面图的比例一般为( )。

A．1:2000或1:1000

B．1:1000或1:3000

C．1:1500或1:2000

D．1:1500或1:3000

答案

参考答案：A

选择题

By the time you have completed the essential training, you _____ exposed to virtually every new feature of the course.

A. are
B. will have been
C. have been
D. will be

解答题

试求过点P（3，5）且与曲线y=x²相切的直线方程．