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【单选题】
关于均数的标准误与标准差的区别，下列叙述错误的是()。
A.
均数的标准误反映均数的抽样误差大小
B.
标准差反映一组数据的离散程度
C.
通过增大样本含量可减小标准误
D.
均数的标准误与标准差呈正比
E.
标准差也可通过统计方法来控制
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参考答案：
举一反三
【多选题】近代中国 社会 社会的主要矛盾是
A.
帝国主义和中华民族的矛盾
B.
资产阶级和无产阶级的矛盾
C.
地主阶级和农民阶级的矛盾
D.
封建主义和人民大众的矛盾
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【单选题】制定《安全生产法》最重要的目的是为了制裁各种安全生产违法犯罪行为。()
A.
对
B.
错
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【单选题】What keeps you so busy these days?
A.
It’s none of your business.
B.
It’s a long story.
C.
Studying English.
D.
Nothing serious.
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【简答题】A) It sounds quite alarming. B) It seems a depressing topic. C) It has little impact on our daily life. D) It is getting more serious these days. 9. A) The man doesn't understand Spanish B) The woman ...
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【判断题】人们通常说影响土壤发育有五大因素是母质、气候、生物、地形和时间。
A.
正确
B.
错误
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【单选题】--Sir, could I hand in my homework a bit late? -- , since you've been unwell these days.
A.
You can’t be serious
B.
I’m afraid not
C.
Good idea
D.
Well, all right
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【简答题】Teeth Whitening Everyone these days seems to want a gleaming set of pearly white teeth. Having the perfect Hollywood smile has created the multi-billion-dollar global teeth-whitening industry. However...
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【单选题】Please choose the correct answer according to what you hear( )
A.
Because others may lose trust in you.
B.
Because it is unprofessional to do so.
C.
Because you will be given more work to do
D.
Because the boss has the data on your work.
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【简答题】工作满意度五大因素是什么？
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【判断题】制定《安全生产法》最重要的目的是为了制裁各种安全生产违法犯罪行为。请对此做出判断( )
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【多选题】近代中国 社会 社会的主要矛盾是
A.
帝国主义和中华民族的矛盾
B.
资产阶级和无产阶级的矛盾
C.
地主阶级和农民阶级的矛盾
D.
封建主义和人民大众的矛盾
查看完整题目与答案
【单选题】制定《安全生产法》最重要的目的是为了制裁各种安全生产违法犯罪行为。()
A.
对
B.
错
查看完整题目与答案
【单选题】What keeps you so busy these days?
A.
It’s none of your business.
B.
It’s a long story.
C.
Studying English.
D.
Nothing serious.
查看完整题目与答案
【简答题】A) It sounds quite alarming. B) It seems a depressing topic. C) It has little impact on our daily life. D) It is getting more serious these days. 9. A) The man doesn't understand Spanish B) The woman ...
查看完整题目与答案
【判断题】人们通常说影响土壤发育有五大因素是母质、气候、生物、地形和时间。
A.
正确
B.
错误
查看完整题目与答案
【单选题】--Sir, could I hand in my homework a bit late? -- , since you've been unwell these days.
A.
You can’t be serious
B.
I’m afraid not
C.
Good idea
D.
Well, all right
查看完整题目与答案
【简答题】Teeth Whitening Everyone these days seems to want a gleaming set of pearly white teeth. Having the perfect Hollywood smile has created the multi-billion-dollar global teeth-whitening industry. However...
查看完整题目与答案
【单选题】Please choose the correct answer according to what you hear( )
A.
Because others may lose trust in you.
B.
Because it is unprofessional to do so.
C.
Because you will be given more work to do
D.
Because the boss has the data on your work.
查看完整题目与答案
【简答题】工作满意度五大因素是什么？
查看完整题目与答案
【判断题】制定《安全生产法》最重要的目的是为了制裁各种安全生产违法犯罪行为。请对此做出判断( )
A.
正确
B.
错误
查看完整题目与答案
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