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【单选题】
在用样本频率估计总体分布的过程中,下列说法正确的是A.
总体容量越大，估计越精确
B.
总体容量越小，估计越精确
C.
样本容量越大，估计越准确
D.
样本容量越小，估计越准确
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举一反三
【单选题】How long did you spend ____ your new house yesterday?
A.
to decorate
B.
decorate
C.
decorating
D.
decorated
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A.
spent
B.
used
C.
paid
D.
took
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【简答题】Présentez-vous en français.
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