下列哪项是痰湿内阻所致头晕的表现
A．头晕胀痛B．头晕昏沉C．头晕眼花D．头晕耳鸣E．以上均非
参考答案：B
乳酸脱氢酶属于（）
A.氧化还原酶类
B.转移酶类
C.水解酶类
D.连接酶类
E.异构酶类
Each fireman’s outfit and its spare equipment on a ship must be stowed（）.
A.in a locked cabinet in the machinery space
B.in an unlocked cabinet in the machinery space
C.in a separate and accessible location
D.at a fire hydrant location
