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【单选题】
若边际误差E=5,总体标准差为40,要估计总体均值95%的置信区间所需的样本量为()A.
146
B.
246
C.
346
D.
446
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【单选题】Techniques to Help Us Remember Better We all have problems remembering things, but there are some techniques that you can use to help you remember. First of all, remember the names and jobs of the peo...
A.
We cannot remember the same as we can do before we get old
B.
Now let's imagine it's a very clever dog and is studying
C.
Create a picture in your mind of yourself going down the street
D.
Here, the best thing is to imagine images of the people and the names that you want to remember
E.
Again the funnier the story, the better
F.
Or with a number like 747 you might think of a jumbo jet—a Boeing 747 (46)
【单选题】Many different languages can be heard in London because
A.
it is a very large city
B.
there are 8,000,000 people there
C.
there are a lot of foreign people there
【简答题】阅读理解。 A Gold Cup for an Orange There is a poor man. He has an orange tree. On the tree, there are many fine oranges. One of them is very, very big. It is as big as a football. Nobody sees so big an or...
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