单项选择题
A.1:4 B.4:1 C.1:2 D.2:1
A.10g B.30g C.35g D.40g
A.金钗石斛 B.鼓槌石斛 C.铁皮石斛 D.流苏石斛
A.2支/200g B.4支/200g C.5支/200g D.6支/200g
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