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请讲的稍微详细一些~~~太谢谢了 Q1:What is the least possible product of 4 different integers,each of which has value between -5 and 10, inclusive? (A)-5040 (B)-3600 (C)-720 (D)-600 (E)-120 Q2:If all of the telephone extension in a certain company must be even numbers,and if each of the extentions uses all four of the digits1,2,3,and 6,what is the greast number of four-digit extentions that the company can have? (A)4 (B)6 (C)12 (D)16 (E)24 |
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