A study that women find it more difficult to give up smoking than men.A. directsB. indica

问题补充：

A study that women find it more difficult to give up smoking than men.

A. directs

B. indicates

C. influences

D. guides

答案：

A. directs

(答案→)B. indicates

C. influences

D. guides

解析：句意：研究表明妇女发现戒掉烟瘾比男士还要难。Direct指导； indicate表明； influence影响； guide指南。根据句意故选B。