<span style、"font-family: 宋体; font-size: small;"><span>环境</span></span>
<span style、"font-family: 宋体; font-size: small;"><span>激励水平的高低</span></span>
<span style、"font-family: 宋体; font-size: small;"><span>期望值</span></span>
<span style、"font-family: 宋体; font-size: small;"><span>效价</span></span>