常用牌号为H08Mn2SiA焊丝中的“A”表示硫、磷含量≤0.03%。( )_爱下问搜题

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问题判断题

常用牌号为H08Mn2SiA焊丝中的“A”表示硫、磷含量≤0.03%。( )

答案

参考答案：对

选择题

— What is that noise?
— Oh, I forgot to tell you that the new machine _____.

A. was tested
B. will be tested
C. has been tested
D. is being tested

问答题

cerebral arterial circle