第30题: [单项选择]Generally speaking, the rewards the employees get in their job are in direct ________to the effort they put in. A. rate B. thickness C. proportion D. amount 参考答案:C 答案解析:[解析]惯用搭配题。所填词能用于in~to sth.结构,并表示rewards和efforts的关系,[C]proportion“比例”,in proportion to sth.表示“和…成比例”,