The factory has 65 percent of the raw materials,the rest of which _____ saved for other purposes.

问题描述:

The factory has 65 percent of the raw materials,the rest of which _____ saved for other purposes.
A.is B.are C.was D.were

B 材料用了可数,剩余的材料应该也是可数的.
如果还有问题,可以问我,2011年安微卷 答案为D那他是想强调其余的原料是在之前就被节省,保管起来了,我个人感觉不严格来说,BD都可以。既然他给的答案D,就只能认为他是说明之前就保管起来一批材料。