回複：SAP智力題-----Locks and chains

來源: 於 2009-06-11 10:24:11 [舊帖] [給我悄悄話] 本文已被閱讀：次

1. all 3 lock individually (not chained)
2. 3 lock chained
3. 2 chained
4. 2 pairs chained