站界标设在双线区间列车运行方向左侧最外方顺向道岔(对向出站道岔的警冲标)外不少于()处,或邻线进站信号机相对处。
A、40m
B、50m
C、60m
D、80m
参考答案:B
I would like to join the school volunteer project, and I often imagine _______.
A.what I should do it
B.what should I do
C.what I should do
D.how should I do
男性,14岁,因发热、咽痛1天就诊,体温39.5℃,无颜面下肢浮肿,扁桃体肿大,化验:尿蛋白+。临床诊断首先考虑
A.溢出性蛋白尿
B.急进性肾小球肾炎
C.急性肾小球肾炎
D.功能性蛋白尿
E.慢性肾小球肾炎