2、形是因式分解的是A.B.C.D.5.下列因式分解正确的是A.B.C.D.6.画△ABC中AB边上的高,下列画法中正确的是A. B. C.D.good,noloosening.6.5.2DCSsidewiringtocompletetheenclosureandtheothersideafterthewiringiscompleted,DCSwithintheenclosurewhenthepowermoduleshouldbeloosenedorthepowergoesout.6.6lowvoltagecableterminalmaking6.6.