China' s contribution to the world economy should be reflected i

China' s contribution to the world economy should be reflected in having a bigger（ ）in the world.
A、talk
B、speech
C、voice
D、sound
【正确答案】：C
【题目解析】：本题考查名词词义辨析。talk：说话，谈话；speech：演说，讲话；voice：嗓音，发言权；sound：声音，响声。句意：中国对世界经济的贡献应该体现到在世界上有更大的发言权上。故C选项符合题意。