问题
单项选择题 B1型题
吡拉西坦（脑复康）作用机制（）
A.能促进大脑皮质细胞代谢
B.阻断5-HT在神经末梢的再摄取
C.增强GABA与其受体的结合
D.增强DA在脑内的含量
E.促进多巴胺释放
答案
参考答案：A
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吡拉西坦（脑复康）作用机制（）
A.能促进大脑皮质细胞代谢
B.阻断5-HT在神经末梢的再摄取
C.增强GABA与其受体的结合
D.增强DA在脑内的含量
E.促进多巴胺释放
参考答案：A
We live in “computer age(时代)”. People like using computers to do ___21__work. But more than 20 years ago, ___22__couldn’t do much. They were very big and expensive. Very __23___people were interested in them and knew how to use them. Today computers are smaller and ___24___.Since they are useful, many people like to use them, even at home. Computers ___25___very important because they can work ___26___than men and make fewer mistakes. Computers can ____27___people do a lot of work. Writers can use computers to write. Teachers can use computers to help teaching and students use them to study. Computers can also remember what you put ___28____ them. Computers are very___29___. They are our good friends. Do you want to ___30____a computer.
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