下面是俺硬盘中逻辑c盘(FAT32)的mbr：
109D:03B0                                            80 01                 ..
109D:03C0  01 00 0B FE 3F F9 3F 00-00 00 3B 48 3D 00 00 00   ....?.?...;H=...
109D:03D0  01 FA 0F FE 7F BA 7A 48-3D 00 81 57 25 02 00 00   ......zH=..W%...
109D:03E0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00   ................
109D:03F0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 55 AA   ..............U.
3B 48 3D 00 ---c盘占用扇区数。
下面显示c的dbr：
109D:0200  EB 58 90 4D 53 57 49 4E-34 2E 31 00 02 08 20 00   .X.MSWIN4.1... .
109D:0210  02 00 00 00 00 F8 00 00-3F 00 FF 00 3F 00 00 00   ........?...?...
109D:0220  36 48 3D 00 4B 0F 00 00-00 00 00 00 02 00 00 00   6H=.K...........
109D:0230  01 00 06 00 00 00 00 00-00 00 00 00 00 00 00 00   ................
109D:0240  80 00 29 FD 0C 7A 12 4E-4F 20 4E 41 4D 45 20 20   ..)..z.NO NAME
109D:0250  20 20 46 41 54 33 32 20-20 20 FA 33 C9 8E D1 BC     FAT32   .3....
...............
36 48 3D 00 ---c盘占用扇区数。为什么两个值有5个扇区的差别呢？到底哪个值正确？按此分析其他逻辑盘，则这两个值相等。为什么？？？请教高手！！！