单项选择题
A.SC732B0052 B.732B0052 C.SF732B1397/12 D.212948
A.502/120/2 B.502/120/3 C.110/120/2 D.110/120/3
A.502/2 250/3 B.502/2 250/2 C.110/2 250/3 D.110/2 250/2