Itwastheearly2000s________mobile

发布时间：2020-07-10 22:54:54

It was the early 2 000s ________ mobile phones were widely used in China, ________ it was considered the patent of the rich．













A.that; in which












B.when; before which











C.that; after which











D.when; in where

网友回答

B
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