单项选择题
A.101JLP B.101JHP C.102JLP D.102JHP
A.10*1000*5*3*1.5 B.9*1000*5*3*1.5 C.10*1000*4*3*1.5 D.9*1000*4*3*1.5
A.3 B.4 C.5 D.6