题目内容

LiPingisnolonger_____hewastenyearsago.

A. that
B. if
C. whom
D. what

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Informationhasbeenputforward______moremiddleschoolgraduateswillbeadmittedintouniversities.

A. while
B. that
C. when
D. which

Itissaidthatmoremiddleschoolgraduateswillbeadmittedintouniversities。Thisistheinformation_______hasbeenputforward.

A. while
B. that
C. when
D. what

Mr.Smithlookedverydepressed.Doyouknow______histroublewas?

A. that
B. why
C. how
D. what

电火花加工的基本要求是被加工材料具有足够的。

A. 强度
B. 韧性
C. 硬度
D. 导电性

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