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【单选题】
在纯随机重复抽样条件下,如果将样本单位数扩大为原来的4倍,则抽样平均误差( )。
A.
扩大2倍
B.
缩小1半
C.
缩小1倍
D.
扩大4倍
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参考答案:
举一反三
【简答题】什么是S形曲线比较法
【单选题】Who should make the extension in a debate?
A.
Prime Minister
B.
Leader of opposition
C.
Member speakers
D.
Whip speakers
【单选题】听力原文:W: If Professor Thomson was willing to gave us a three-day extension to finish the project, maybe she'll give us a few more days. M: Let's not push our luck, Mary, OK? Q: What does the man mean? ...
A.
They shouldn't make too many requests.
B.
They shouldn't push the project.
C.
They shouldn't push the project buttons.
D.
They should wish the professor good luck.
【简答题】电力系统中发生单相接地短路时,故障相短路电流的大小为其零序电流分量的( )倍。
【单选题】听力原文:What's the extension number of the head office? (A) It's on 5th and Main street. (B) I think it has 12 floors. (C) You should check their website. (27)
A.
B.
C.
【单选题】以下不属于I型超敏反应性疾病的是( )
A.
皮肤过敏反应
B.
消化道过敏反应
C.
接触性皮炎
D.
过敏性休克
【单选题】以下不属于I型超敏反应性疾病的是( )
A.
皮肤过敏反应
B.
消化道过敏反应
C.
接触性皮炎
D.
过敏性休克
E.
呼吸道过敏
【简答题】make extension of the L/C
【多选题】How do the two teams of the Lower House make extension?
A.
To make a new line of argument
B.
To provide an In-depth analysis
C.
To focus on a case study
【判断题】假如某种商品的价格从5美元上升到5.10美元,购买者就会完全停止购买这种商品,这表明需求对价格的变化是完全有弹性的。()
A.
正确
B.
错误
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