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问答题
If 5a=9b=15c, what is the value of a+b+c? (1) 3c-a=5c-3b (2) 6cb=10a
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解析:
通过计算可知,由条件1无法计算出a+b+c的具体值;由条件2可以计算出a+b+c的具体数值,17或0,故本题选B项。
通过计算可知,由条件1无法计算出a+b+c的具体值;由条件2可以计算出a+b+c的具体数值,17或0,故本题选B项。
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