经动脉导管栓塞治疗上消化道出血最常见的并发症是()
A.栓塞脏器组织缺血坏死
B.腹腔出血
C.胆血症
D.门静脉血栓形成
E.肺栓塞
参考答案:A
________ there is going to be a policy change ________ of those things is going to change.
A.Unless; few
B.Until; few
C.Unless; none
D.Until; none
高速行车中制动突然失灵时,驾驶人要如何制动
A.连续踩踏制动踏板
B.抢挂低速档,使用驻车制动
C.迅速踏下离合器踏板
D.迅速拉紧驻车制动器操纵杆