放射源探头（）米以内不许进行电焊。A.1 B.2 C.3 D.4_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

放射源探头（）米以内不许进行电焊。

A.1

B.2

C.3

D.4

答案

参考答案：B

解答题

307008091读作：______

200712019读作：______．

选择题

— Hurry up! We're all waiting for you.
— I ______ for an important phone call. Go without me.

A. wait
B. was waiting
C. am waiting
D. waited