选择题:—Mom, can I leave my homework for tomorrow? ( )—I’

题目内容:
—Mom, can I leave my homework for tomorrow? ( )
—I’m afraid not. Don’t what you can do today till tomorrow. A A. put on
B B. put down
C C. put up
D D. put off

参考答案:

方差分析的应用条件之一是方差齐性,它是指( )(本题2.0分)

方差分析的应用条件之一是方差齐性,它是指( )(本题2.0分)A 各比较组相应的样本方差相等B 各比较组相应的总体方差相等C 组内方差=组间方差D 总方差=组内

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