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【判断题】
机械的效率和损失率的和应该等于1.A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】评标委员会成员的名单在( )前应当保密。
【单选题】He often sat in a small bar drinking considerably more than _________.
A.
he was in good health
B.
his health was good
C.
his good health was
D.
was good for his health
【多选题】西装穿着以下哪些描述是正确的?
A.
一颗扣的西装，正式场合可以扣起来，非正式场合可以不扣
B.
两颗扣的西装，正式场合只扣上面一颗扣
C.
三颗扣的西装，正式场合扣中间一颗扣或者上面两颗，下面一颗扣不扣
D.
双排扣的西装，正式场合需要全部扣上
【单选题】两样本均数比较，差别具有统计学意义时，P值越小说明( )
A.
两样本均数差别越大
B.
两总体均数差别越大
C.
越有理由认为两样本均数不同
D.
越有理由认为两总体均数不同
E.
越有理由认为两样本均数相同
【单选题】He often sat in small bar drinking considerable more than ________.
A.
he was in good health
B.
his health was good
C.
his good health was
D.
was good for his health
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