Forment征为哪根神经损伤()
A.正中神经
B.尺神经
C.桡神经
D.肌皮神经
E.腋神经
参考答案:B
He hurried to the station,only ________ that the train had left.
A.to find
B.finding
C.found
D.to be found
亚硝酸钠滴定法测定苯佐卡因含量时的反应原理是什么?测定时应注意哪些问题?