题目信息
An analyst will recommend a combination of 3 industrial stocks, 2 transportation stocks, and 2 utility stocks. If the analyst can choose from 5 industrial stocks, 4 transportation stocks, and 3 utility stocks, how many different combinations of 7 stocks are possible?
A:12
B:19
C:60
D:180
E:720
参考答案及共享解析

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正确答案:
D:180
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