求助OG12th-91-96

xiaoaojiang

根据答案的解析，问题93，是根据以下这句话推出来的：

Duverger's research findings were that women voted somewhat less frequently than men (the difference narrowing the longer women had the vote) and were slightly more conservative.

可以帮我解释一下这句话吗？尤其是括号里的内容，谢谢。