问题
选择题
We want such materials ________ can bear high temperature and pressure.
A．that
B．as
C．what
D．which
答案
答案：B
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。
搜题请搜索小程序“爱下问搜题”