铅当量的单位是-查字典考试网

铅当量的单位是

A、mmPb
B、cmPb
C、mPb
D、dmPb
E、nmPb

查看答案

正确答案：

答案解析：

暂无解析

上一题下一题

你可能感兴趣的试题

重写句子：Hockeyisasportwhichispopularinmanycountriesaroundtheworld.(simplesentence)

查看答案

Howmanyformscanarticlesberoughlydividedinto?whatarethey?

查看答案

It_______methreeyearstodrawthebeautifulhorses.

A、took
B、paid
C、spent
D、cost

查看答案

Peoplewhocan’t_______betweencolorsaresaidtobecolor-blind.

A、separate
B、divide
C、distinguish
D、appointed

查看答案

We_____knowledgefromourfamilies,schools,jobs,andthemassmedia.

A、request
B、require
C、inquire
D、acquire

查看答案