健康成人女性血红蛋白的正常值为( )
A.110~150g/L
B.110~155g/L
C.120~160g/L
D.105~150g/L
E.115~155g/L
参考答案:A
— What do you think of teaching, John?
— I find it fun and challenging. It is a job ______ you are doing something serious but interesting. [ ]
A. what
B. which
C. where
D. that
突然发生的原因不明的感音神经性聋称()。
A.突发性聋
B.梅尼埃病
C.获得性非遗传性聋
D.功能性聋
E.以上均不对