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How do you do this question? 再20至30之间，有多少个质数？A .2 B.4 C.6 D.8​
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How do you do this question? 再20至30之间，有多少个质数？A .2 B.4 C.6 D.8​

User Snacky
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1 Answer

5 votes

Answer:

有两个，是23 和29

所以是 A

User Timothy Johns
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