识图完成以下各题。

1. The picture is the map of ________.

A. Europe

B. Asia

C. North America

D. South America

2. How big is this continent?

A. 10 million square kilometers.

B. 24 million square kilometers.

C. 44 million square kilometer.

D. 22 million square kilometers.

3. In area, the biggest country in this continent is ________.

A. England

B. the United states

C. Canada

D. France

4. In the picture "D" is ________.

A. Mount Everest

B. the Alps

C. the Rockey Mountain

D. Himalayas

血氯降低时病人往往存在（）

A.代谢性酸中毒

B.呼吸性酸中毒

C.代谢性碱中毒

D.呼吸性碱中毒

E.呼吸性酸中毒合并代谢性碱中毒