A 实际回收期-规定的回收期 B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20250607/7110648_0.png"> C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20250607/7110648_0_1.png"> D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20250607/7110648_0_2.png">