He is known a scientist and famous his research on rice.A. for; asB. for; forC. as; for

问题补充：

He is known a scientist and famous his research on rice.

A. for; as

B. for; for

C. as; for

D. as; as

答案：

A. for; as

B. for; for

(答案→)C. as; for

D. as; as

解析：可联系答.案.网客服索取。