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4) The newly elected president was popular among his people for his dynamism and ________ .

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5) The webpage is_________________ for the convenience of the users.

6) The job requires not only hard work but also deep devotion and ___________________ .

在参数估计中,要求通过样本的统计量来估计估计总体参数,评价估计量的标准之一是使估计量波动的中心为待估参数。这种评价标准称为( )。

A. 无偏性
B. 有效性
C. 一致性
D. 充分性

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A. 开立帐户
B. 公开报道