<span><span style、" font-family: 宋体;">工作量法</span></span>
<span><span style、" font-family: 宋体;">年数和折旧法</span></span>
<span><span style、" font-family: 宋体;">平均年限法</span></span>
<span><span style、" font-family: 宋体;">双倍余额递减法</span></span>
<span><span style、" font-family: 宋体;">直线折旧法</span></span>