The ways ( ) air-conditioners work to "clean" the air can in

The ways ( ) air-conditioners work to "clean" the air can inadvertently cause health problems,too.
A.which B.that C.in which D.in that
为什么答案是C而选B却不可以呢?

保悦 1年前已收到2个回答举报

Sickun 幼苗

共回答了16个问题采纳率：93.8% 举报

因为that只在单一个情形下使用的,这句子里"ways"是多於一个way,所以that不适用.
若果是一个way,即the way则要用 the way that.了.
因此你现在亦应明白,which 是有其中的一个选择的问句时使用的原因了.

1年前

JACKET418 幼苗

共回答了457个问题举报

in that ways

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