咳嗽、打喷嚏时不自主地有少量尿液排出属于()
A．充溢性尿失禁
B．假性尿失禁
C．完全性尿失禁
D．真性尿失禁
E．压力性尿失禁
参考答案：B
— Did the door keeper let you in?
— No, _______ I tried to tell him that I was your aunt, he just wouldn't listen to me. [ ]
A. No matter
B. Even if
C. However
D. Whatever
信用交易是投资者通过交付（）取得经纪人信用而进行的交易。
A.订金
B.押金
C.保证金
D.定金
