问答题P(x) = the number of distinct prime factors of x
问答题
P(x) = the number of distinct prime factors of x
参考解析
解析：
因为350 = 35 × 10 = 5 × 7 × 2 ×5，所以A= P(350)=3；因为120=2 × 2 × 3 × 2 × 5，所以B= P(120)=3，所以A=B，故本题选C项
因为350 = 35 × 10 = 5 × 7 × 2 ×5，所以A= P(350)=3；因为120=2 × 2 × 3 × 2 × 5，所以B= P(120)=3，所以A=B，故本题选C项
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