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【单选题】
两个小样本数值变量资料比较的假设，首先应考虑（）
A.
t检验
B.
u检验
C.
秩和检验
D.
t检验和秩和检验均可
E.
资料符合t检验还是秩和检验
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A.
偶然误差
B.
系统误差
C.
可能是偶然误差也可能是系统误差
D.
不是偶然误差也不是系统误差
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A.
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B.
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【多选题】吉林省已探明储量的矿产资源有89种,其中: 等11种矿产储量居全国首位。
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明矾石
B.
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【单选题】Whenever I see anyone buying a National Lottery ticket I want to stop them and ask if they know just where their money is going. The lottery money is supposed to go to charity—but it makes me angry to...
A.
people will spend more money on the National Lottery
B.
people will give more money to charity
C.
most of the lottery money will go to charity
D.
most of the lottery money will be used for cancer research
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相关题目：
【简答题】— Are those photos taken in South Africa still with you, Jeff? — Of course, whenever I see them, they will remind me ________ those days we spent together
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【单选题】普通水准尺的最小分划为1cm,估读水准尺mm位的误差属于()。
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【单选题】Whenever I see anyone buying a National Lottery ticket I want to stop them and ask if they know just where their money is going. The lottery money is supposed to go to charity—but it makes me angry to...
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B.
people will give more money to charity
C.
most of the lottery money will go to charity
D.
most of the lottery money will be used for cancer research
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