慢性支气管炎患者的自主神经功能失调表现为()
A.α受体功能亢进
B.交感神经功能低下
C.副交感神经功能亢进
D.β受体功能亢进
E.副交感神经功能低下
参考答案:C
We've got two TV sets, but we still can't watch anything because ______ works properly.
A.neither
B.either
C.each
D.none
限速酶