There was no news from Kissinger while he was in Beijing, chiefly because______.
A.his trip had to be kept secret
B.President Yahya did not go with Kissinger
C.Communication between Beijing and Islamabad was difficult
D.The negotiation(谈判) was not successful
第4题
日本血吸虫的新鲜虫卵可引起
A.肺点状出血
B.胆管炎
C.皮炎
D.嗜酸性脓肿
E.门静脉血管内膜炎
第6题
A.肝炎后肝硬化是肝窦后阻塞
B. 肝炎后引起的门脉高压症是因为门静脉小分支周围发生肉芽肿所导致的
C. 血吸虫引起的门脉高压是肝动脉和门静脉之间的交通支大量开放所引起的
D. 血吸虫性肝硬化是肝窦前阻塞
E. 血吸虫病引起肝外门静脉阻塞
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