The scientists are now trying to discover that use could be such material.A. made outB. m

问题补充：

The scientists are now trying to discover that use could be such material.

A. made out

B. made up

C. made of

D. made from

答案：

A. made out

B. made up

(答案→)C. made of

D. made from

解析：可联系答.案.网客服索取。