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【单选题】
对吡拉描述不正确的是A.
化学名为2-氧代-1-吡咯烷基乙酰胺
B.
是改善脑功能的药物
C.
属于γ-氨基丁酸的环状衍生物
D.
其作用机理是乙酰胆碱酯酶抑制剂
E.
其中枢兴奋作用弱,故副作用低
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【简答题】逻辑文件存放在到存储介质上时,采用的组织形式是与( )有关的.
【单选题】The technology consultant will ______.
A.
help customers with IT problems
B.
purchase IT products for the company
C.
sell computers to customers
D.
sell IT information to customers
【单选题】Malaysia is a country that______in the manufacture of rubber products.
A.
specializes
B.
produces
C.
turns
D.
makes use
【单选题】The main idea of the third paragraph is that ______.
A.
a mature torpedo is capable of producing enough electricity to knock down a man
B.
the mass of the fish decides the intensity of electric power it generates
C.
the strength of shock given by a young electric ray can only light the bulb of a pocket flashlight
D.
to make full use of the energy produced by electric fish, suitable wires should be available
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