A.1个,10个B.3个,5个C.2个,10个D.2个,8个
A.5个,30B.5个,15C.10个,15D.10个,30
A.3个B.5个C.10个D.15个
A.3个 B.5个 C.10个 D.15个
A.5个B.10个C.15个D.30个