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2,2,8,21,42,()A. 72 B. 74 C. 86 D. 90
2015-01-24
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14,24,12,0,()A. -2 B. -3 C. -5 D. 2
2015-01-24
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一个两位数的中间再加上一个0,那么所得的这个数是原数的9倍,原来这个两位数是多少? ()
2015-01-24
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1/36,1/5,1,3,4,()A. 8 B. 6 C. 5 D. 1
2015-01-24
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2015-01-24
2015-01-24
2015-01-24
2015-01-24