题目内容

所谓温度头，是指设定的炉温高出始锻温度的数值

A. 对
B. 错

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氢是钢中危害性最大的气体，它在钢中的含量超过一定极限值时，会在锻后冷却过程中，在锻件内部产生白点和氢脆缺陷，使钢的塑性显著下降

A. 对
B. 错

I have to finish my homework first_____ cleaning up the room.

A. because of
B. instead of
C. in front of
D. at the end of

Lu Han is_an excellent actor _ most teenagers like him.

A. such; that
B. so; that
C. too; to
D. not; but

He was _crazy about rock music__he almost spent all his free time listening to it.

A. too; to
B. so; that
C. both; and
D. either;or