A.碳、氫、氧、氮 B.碳、氫、氧 C.碳、氫、氧、磷 D.氫、氮、硫、磷 E.碳、氫、氧、硫
A.1:1 B.1:(2~3) C.1:(3~4) D.1:(4~6) E.1:(6~8)
A.豬肉B.豬肝C.豬腦D.豬舌頭E.豬肺