题目内容

【C13】

A. lacked
B. required
C. faced
D. confronted

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【C9】

A. whom
B. these
C. them
D. which

【C14】

A. climax
B. decline
C. rise
D. demise

防水混凝土结构厚度不应小于250mm,其允许偏差为().
A﹒[+10mm﹑-10mm]
B﹒[+15mm﹑-10mm]
C﹒[+10mm﹑-15mm]
D﹒[+15mm﹑-15mm]

【C16】

A. however
B. accordingly
C. consequently
D. thus