回复：SAP智力题-----Locks and chains

来源: Windows8 于 2009-06-11 10:24:11 [] [旧帖] [给我悄悄话] 阅读数 : (99 bytes)

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

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