[单项选择]What does the man mean ?() A. He’’d like a piece of pie. B. He’’d like some coffee. C. He’’d rather stay in the warm room. D. He’’s just had dinner with his friends.
参考答案:B 答案解析:
[听力原文]W: It’’s freezing cold. Let me make some coffee to warm us up. Do you want a
第22题: [单项选择]胆囊动脉主要源自()。 A. 肝右动脉 B. 肝左动脉 C. 肝固有动脉 D. 胃、十二指肠动脉 E. 胰十二指肠上动脉 参考答案:A 答案解析:胆囊动脉约85%源自肝右动脉,少部分变异者可源自肝左动脉、肝固有动脉甚至胃十二指肠动脉。正常胆囊动脉从肝右动脉发出后,从肝管后方到达胆囊颈部左缘,然后再分为深浅两支,分别供应深处的肝床面及浅处的游离面