病人神志清醒时，小便不能控制而自遗，称之为（）
A.小便失禁
B.遗尿
C.小便清长
D.余溺不尽
E.小便频数
参考答案：A
When the earthquake happened in Yushu, Qinghai, many _____ and doctors went there to save lives. [ ]
A. soldiers
B. soldier
C. old people
D. friend
2L-50型装载机额定负荷（）吨。
A.4
B.5
C.7
