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标题: GWD Set 5 T15 [打印本页]

作者: newasers    时间: 2005-6-11 06:25     标题: GWD Set 5 T15

这个题好费时间,请问有什么简单的速算法吗? 谢谢

Q15:

Which of the following fractions has a decimal equivalent that is a terminating decimal?

A. ATH connecttype="rect" gradientshapeok="t" extrusionok="f">ATH>

39/128

B. 25/144

C. 15/225

D. 15/196

E.10/189


作者: newasers    时间: 2005-6-12 20:45

明白了,谢谢!!




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