题目信息
If S is the sum of the reciprocals of the 10 consecutive integers from 21 to 30, then Sis between which of the following two fractions?
A:$$\frac{1}{3}$$ and $$\frac{1}{2}$$
B:$$\frac{1}{4}$$ and $$\frac{1}{3}$$
C:$$\frac{1}{5}$$ and $$\frac{1}{4}$$
D:$$\frac{1}{6}$$ and $$\frac{1}{5}$$
E:$$\frac{1}{7}$$ and $$\frac{1}{6}$$
参考答案及共享解析

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已选答案:
正确答案:
A:$$\frac{1}{3}$$ and $$\frac{1}{2}$$
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