试题与答案

空气过滤器用于对空气的净化处理。产品有()等几类。 A.粗效过滤器 B.中效过滤器

题型:多项选择题

题目:

空气过滤器用于对空气的净化处理。产品有()等几类。

A.粗效过滤器

B.中效过滤器

C.高效过滤器

D.一般过滤器

答案:

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