They are________ different sizes, shapes and metals, but they are exactly the same________.
A:不填;in weights
B:of; in weight
C:in; of weight
D:of; weights
人在酒驾时明显表现为反应慢、动作不协调,从而影响各项操作.造成人动作不协调的主要原因是酒精麻痹了人的( )
能用H++OH-=H2O表示的反应为( )。