在 as..., such (或 such..., 或 so...), the same (或 the same...)后面的定语从句应该用 as引导。例如：He was not such a man as would tell a lie .(摘自《刘毅英语语法宝典》p.25)

       所以，这道题的答案只能是 A.as ：

       We want such material______ can withstand high temperature and strong stress. 

       A.as    B.which     C.what