题型:问答题 论述题 Every morning I get up at 6:00 because I have two dogs ______ at the door for me to take them out for the routine walk.A.to waitB.waitC.waitedD.waiting 查看答案
题型:问答题 论述题 关于肺栓塞的病理生理,叙述正确的是()A.是通过机械阻塞作用直接影响呼吸系统而致B.肺动脉的血栓栓塞通常为单一部位C.急性肺栓塞是导致肺梗死而出现临床症状D.血栓阻塞肺动脉后导致肺循环阻力增加、肺动脉高压E.肺栓塞后远端肺组织发生肺梗死 查看答案