合金元素中对钢脱碳有影响的元素有（）。A、铝 B、钨 C、硼 D、锰_爱下问搜题

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问题多项选择题

合金元素中对钢脱碳有影响的元素有（）。

A、铝

B、钨

C、硼

D、锰

答案

参考答案：A, B, C, D

单项选择题

Questions 14-23

·Look at the ten statements for this part.
· You will hear a passage about "Inflation" You will listen to it twice.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Markyour answers on the Answer Sheet.

Inflation urges consumer spending and discourages saving.

A．Right

B．Wrong

C．Not Mentioned

判断题

集箱管接头的装配一般情况下都在装配平台上进行。( )