题目内容

He looked around to ______ that he was not traced by the detective and then entered the room.

A. confirm
B. conform
C. doubt
D. condemn

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They owed their boss a large amount of money and it took them three years to ______ the debt.

A. take back
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C. pay out
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The number of members in the club has already ______ 120 since it was establised last week.

A. come to
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A. /
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有关水温对石膏模型材料调和凝固速度的影响,哪项是错误的

A. 0~20℃随水温升高而加快
B. 20~30℃随水温升高而变慢
C. 30~50℃随水温升高无明显变化
D. 50~80℃随水温升高而变慢
E. 80℃以上不再凝固