单项选择题
A.HT-12E与HT-12D B.TWS-433与RWS-433 C.HT-12E与TWS-433 D.HT-12D与RWS-433
A.IOW与IOR B.IOC5与IOC7 C.INC与INCA D.CONTR与CONTW
A.IOCB与IOCE B.IOCE与CONT C.IOCF与CONT D.IOCE与IOCF