1.9÷0.3的商保留两位小数约是请选择CBA/Q4g1J9i1Q({,T,Y/S1{+|2Y)T9r4V8C4i4t,S
A.0.631{+|2Y)T9r4V8C4i4t,S
B.6.341{+|2Y)T9r4V8C4i4t,S
C.6.331{+|2Y)T9r4V8C4i4t,S