题目内容

Do you want me to do this?You needn't tell me, if you don't want _____.

A. it
B. so
C. this
D. to

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When _____ where he was born, John said he was a New Yorker.

A. asking
B. being asked
C. was asked
D. asked

Who's got my money? I _____.

A. do
B. have
C. am
D. got

影响金属材料疲劳极限的因素有。1.成分; II.组织状态; II. 强度; IV.表面粗糙度; V.应力集中; VI.刚度。

A. I+II+III+IV+V
B. I+II+IV+V
C. I+II+III+V
D. I+II+V+VI

高温下材料抵抗塑性变形的能力称为

A. 疲劳极限
B. 蠕变极限
C. 屈服极限
D. 持久极限