救援列车进入封锁区间时限速30km/h,救援列车与故障列车连挂限速5km/h。()
参考答案:错
--- Which of the two English dictionaries will you buy ?
--- I’ll buy ___ of them , so I can give one to my friend , Helen .
A either B neither C all D .both
下列哪项不符合肾小球肾炎的描述?()
A.可由肾小球植入抗原引起
B.可由细菌感染直接引起
C.可由肾小球固有抗原引起
D.可由原位免疫复合物引起
E.可由循环免疫复合物引起