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【单选题】
关于离子通道受体,下列哪项叙述是错误的A.
是由肽链一次膜糖蛋白构成 , 其胞质区含有酪氨酸
B.
受体的亚基具有装配成筒状寡聚体结构 , 形成跨膜通道
C.
离子通道的“开”或“关”受细胞外配体的调节
D.
常见的离子通道受体有 N- 乙酰胆碱受体和γ - 氨基丁酸受体等
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【判断题】When culture is compared to an iceberg, the clothes we wear is above the water.
A.
正确
B.
错误
【简答题】The first modern Olympics was held nearly three centuries ago.
【单选题】Passage Three Most English people have three names: a first name, a middle name and the family name. Their family name comes last. For example, my full name is Jim Allan Green. Green is my family name...
A.
one
B.
two
C.
three
D.
four
【单选题】What do the first three sentences in the first paragraph intend to say?
A.
They intend to warn people of the possible dangers hidden in the custom car.
B.
They illustrate the glamour and charisma of a custom car.
C.
They show how to drive a custom car.
D.
They just describe one of the terrible traffic accidents in this custom car.
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