The medicine bought at a high price turned out to have no . A. influenceB. resultC. effect

问题补充：

The medicine bought at a high price turned out to have no .

A. influence

B. result

C. effect

D. risk

答案：

A. influence

B. result

(答案→)C. effect

D. risk

解析：名词辨析。A影响；B结果；C影响；作用；D风险；句意：花了高价钱买来的药证明是没有作用的。根据句意说明C正确。