最有助于诊断的检查是
A．中段尿培养
B．血培养
C．宫腔分泌物培养
D．肾功能测定
E．肝功能测定
参考答案：C
_____ the teachers in their school is about 200 and one fourth of them are _____ teachers. [ ]
A. A number of; women
B. A number of; woman
C. The number of; women
D. The number of; woman
短增量敏感指数试验在耳蜗病变时，敏感指数可高达（）。
A.80％～100％
B.60％～80％
C.40％～60％
D.20％～40％
E.0％～20％
