We want such materials______can bear high temperature and pressure.

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问题 We want such materials______can bear high temperature and pressure.

选项 A、that
B、as
C、what
D、which

答案B

解析 such materials as引导的是定语从句，as在从句中作主语，而such materials that引导的是结果状语从句，that在从句中不充当成分。

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小学英语

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