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As far as I know, they rarely, , use imported materials. A. if not B. if so C. i

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As far as I know, they rarely, , use imported materials. A. if not B. if so C. i

As far as I know, they rarely, ___________, use imported materials.

    A. if not                          B. if so         

C. if any                          D. if ever

试题答案

D

标签：theyrarelyuseknowas

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