He phoned his uncle who lived in the country, asking him to () his two schoolmates for the weekend.
A. assemble
B. accommodate
C. raise
D. resemble
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小五很会照顾人,性格幽默,脾气又好,相信会是一个优秀的丈夫,同事们都非常羡慕你。 根据这段话,可以知道小五:
A. 工作好
B. 爱生气
C. 性格好
D. 工作认真
The recovery and () of the country's economy has also been accompanied by increasing demands for high quality industrial sites in attractive locations.
A. renewal
B. revival
C. recession
D. relief
釉牙本质界的小弧形凹面
A. 与釉柱平行
B. 向着牙本质
C. 向着釉质
D. 与釉质生长线平行
E. 与釉板平行
在抽样研究中,若σ为定值,随着样本例数逐渐增大,则
A. 样本标准差减小
B. 当n趋近无穷大时,标准差降至0
C. 标准误减小
D. 标准误波动范围增大
E. 标准误、标准差都不改变