Muhammad Ali started to learn boxing because______.
A. he was very much interested in the sport
B. he intended to revenge on the bike thief
C. he found a policeman as his best trainer
D. he had got boxing lessons from the police
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"…people who die wondering. What if" (Line 3, ParA．3) refers to "those （）
A. who think too much of the dark side of life
B. who regret giving up their career halfway
C. who think a lot without making a decision
D. who are full of imagination even upon death
______a wise man can say a foolish thing, a fool can say something wise once in a while.
A. If
B. When
C. Because
D. Just as
Whom are the speakers most likely talking about
A girl John knows but Becky not.
B. A girl Becky knows but John not.
C. A girl both John and Becky know.
D. A girl neither John nor Becky knows.
按照施工合同的规定，从开工之日起至( )止的日历天数为承包人施工期，据此与合同工期比较判定承包人是提前竣工还是延误竣工。
A. 承包人提前竣工验收前自检合格日
B. 承包人提供竣工资料和竣工验收报告日
C. 开始竣工检验日
D. 竣工验收合格，工程师在检验记录签字日
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