把下列各數(shù)化成二進制數(shù)和八進制數(shù)(二進制取3位小數(shù),八進制取一位小數(shù)): 7+3/4 ±3/64 73.5 725.9375 25.34
A.00011001 B.10100110 C.10011001 D.00100110