. is known to us all America is a developed country the first world.A. As; belongingB. wh

问题补充：

. is known to us all, America is a developed country the first world.

A. As; belonging

B. which; belonged

C. as; belonging to

D. which; belonged to

答案：

A. As; belonging

B. which; belonged

(答案→)C. as; belonging to

D. which; belonged to

解析：考查as 与which的辨析和belong短语的用法。