搜题请搜索小程序“爱下问搜题”
问题 单项选择题

19dBm换算成数是多少瓦？（）

A.0.008

B.0.08

C.0.9

D.9

答案

参考答案：B

选择题
He never bought a gift for his parents,              he?

A. was
B. didn't
C. did
D. wasn't
查看答案
选择题
7.56÷0.85的商的最高位是(   )
A．个位B．十倍C．十分位D．百分位
查看答案