加工一批零件,甲加工一个零件要1/5小时,乙要 1/6小时,两人一个小时一共加工多少个请选择ABCD+|,I.o1Y4C0D2d;j3r7g7s:k8y+b0_/W*I4S8U
A.30/110D2d;j3r7g7s:k8y+b0_/W*I4S8U
B.11/300D2d;j3r7g7s:k8y+b0_/W*I4S8U
C.300D2d;j3r7g7s:k8y+b0_/W*I4S8U
D.110D2d;j3r7g7s:k8y+b0_/W*I4S8U