神经传导检查中超强刺激超过最大刺激约()
A.25%
B.50%
C.75%
D.100%
E.125%
参考答案:A
86. --- What does your father do?
--- He was a _________in the post office but now he is promoted to the postmaster.
A.clerk
B.cooker
C.salesman
D.Barber
简述井喷失控的危害性。