单项选择题
A.12 B.24 C.20 D.10
A.LPDLR B.LPDLS C.LPDLM D.SS7L
A.DUDCTMA B.DILNA C.DULNA D.DUVSWR
A.GETINFO BSCESUSW B.GETINFO NEYESUSW C.GETPENDING ALARMS BSCE
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