【判断题】【消耗次数：1】
对资料进行组距式分组，是假定变量值在各组内部的分布是均匀的，所以这种分组会使资料的真实性受到损害。
①
正确
②
错误
参考答案：
复制
纠错
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having realized
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realizing
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realized
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that
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hasn’t been
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hadn’t been
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wasn’t
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having been held
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being held
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to be held
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held
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Have a word with the manager ______ if he’s willing to reduce the price.
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and to see
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which
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按Ctrl+F5
②
按Shift+F5
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将两次插入的内容全部取消
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