题目内容

Which statement is NOT true about this conversation

A. It took place on Sunday.
B. It took place between two classmates.
C. It took place in the evening.
D. It is about asking for a favor.

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How many people died in riots on Tuesday

A. 13.
B. Unknown.
C. 36.
D. 300.

钢的热处理是先把钢加热到高温，使组织转变为（），再以一定速度冷却下来，从而获得需要的组织与性能。

A. 奥氏体
B. 渗碳体
C. 铁素体

What institution is the man work for

A bank.
B. A research centre.
C. A financial institution.
D. A multinational corporation.

再热器的管卡多采用（）制成的梳形管卡或波纹形管卡。

A. 碳钢
B. 合金钢
C. 耐热钢
D. 耐磨钢