题目内容

呼吸衰竭并发胃出血、胃溃疡的发生机制是

A. CO2潴留使胃壁细胞碳酸酐酶活性减弱
B. 缺氧使胃壁血管收缩,胃黏膜屏障作用降低
CO2潴留使胃血管收缩
D. 缺氧使胃壁细胞碳酸酐酶活性增强

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P28, paragraph 2,How did Ethelred respond to Danish invasion?

A. fight back
B. pay money to buy peace
C. plead for peace
D. seek assistance

P29, paragraph 2Emme of Normandy married to whom for her second marriage?

A. Svein
B. Ethelred
C. Alfred
D. Cnut

P29, paragraph 3Which is the description of the appearance of Cnut according to Norse sagas?

A. fat nose
B. hooked eyes
C. tall, strong and handsome

P30Which one is true according to the article?

A. Cnut asked the tide to turn back because he was foolish and arrogant.
B. Edward married Godwin's daughter because they were in love.
C. Edward the Confessor became a king, but Godwin had the real power.
D. Edward and Godwin stood side by side to fight against Cnut.

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