Q37:
If k is an integer and (0.0025)(0.025)(0.00025)×10k is an integer, what is the least possible value of k?
A. -12
B. -6
C. 0
D. 6
E. 12
Answer: E
不明白,如果是0的话,10的0次方不就是1了么?那前面那一堆也不是整数阿
不明白,如果是0的话,10的0次方不就是1了么?那前面那一堆也不是整数阿
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