同一资料计算出来的各种标志变异指标数值的关系是()。A、R>A·D B、R>δ C、δ>

题型:多项选择题

问题:

同一资料计算出来的各种标志变异指标数值的关系是()。

A、R>A·D

B、R>δ

C、δ>A·D

D、Vδ>VA·D

E、δ>Vδ

考点:统计学统计学综合练习统计学综合练习题库
题型:多项选择题

若保险合同不具有法律效力,不受国家法律保护,其结果是()。

A.保险合同变更

B.保险合同解散

C.保险合同解除

D.保险合同无效

题型:多项选择题

根据句意及首字母提示补全单词。

1. The little shy girl got n_____ when she saw the head teacher coming towards her.

2.Her friends all believe what she said,because she is always t_____ to words.

3. Jack wanted to post this letter,so he went to the post office to buy some stamps and an e_____.

4. You are so l_____ to have such good and patient teachers.

5. The weather was bad and the food was so terrible. My holiday was very d_____.

题型:多项选择题

The scenery beyond the mountain is __________beautiful. [ ]

A. unbelievably

B. unexpectly

C. surprisedly

D. gradually

题型:多项选择题

半导体的导电性能介于导体与_____体之间;我国西部正大力开发和使用风力发电,风能是 _____再生能源(选填“可”或“不可”).

题型:多项选择题

煤矿必须有工作、备用和检修水泵。工作水泵和备用水泵的总能力为应能在( )h内排出地下矿山24h的最大涌水量。

A.20
B.23
C.25
D.28

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