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【单选题】
局麻药的作用机制是A.
阻断K+外流,阻碍神经细胞膜去极化
B.
阻碍Ca2+内流,阻碍神经细胞膜去极化
C.
促进CI-内流,使神经细胞膜超极化
D.
阻碍Na+内流,阻碍神经细胞膜去极化
E.
阻断乙酰胆碱的释放,影响冲动的传递
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【单选题】听力原文： Kenya was a beautiful country inhabited by different groups Of people, some farmers, some herds men, a few hunters, when the English arrived. The main motivations for. colonizing Kenya were econ...
A.
English settlers.
B.
Native farmers, herdsmen and hunters.
C.
Missionaries, civil servants and professional people.
D.
German settlers.
【单选题】下列关于欧洲西部的叙述，正确的是 [ ]
A.
地形以高原为主
B.
是世界上发达国家集中的地区
C.
北部有著名的阿尔卑斯山脉，南部是斯堪的纳维亚山脉
D.
气候深受北冰洋影响，海洋性特征显著
【简答题】下列有关北欧国家叙述正确的是( )。A. 瑞典是欧盟成员国，使用统一的欧元 B.丹麦主要位于日德兰半岛 B. 乌尔内斯木板教堂被列入世界文化遗产 D.赫尔辛基是芬兰的首都
【简答题】X. Translate the following paragraphs into Chinese. Dr. Edward de Bono is the world's leading authority on conceptual thinking as the driver of organizational innovation, strategic leadership, indivi...
【单选题】Whish statement is not true about the Old Town of Lijiang?
A.
It is located in the vital transportation line between Yunnan, Sichuan and Tibet.
B.
It was the hub of national culture and economic exchanges between the Han, Tibetan, Bai and Naxi ethnic groups since ancient times.
C.
It was an important military strategic center of the northern Silk Road.
D.
It was an important military strategic center of the Ancient Tea Horse Road.
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