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【单选题】
神经细胞电位的数值接近于下列哪一种离子的平衡电位( )?A.
K +
B.
Na +
C.
Fe 2+
D.
Cl -
E.
Ca 2+
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【简答题】He/she has a background of studying chemistry.
【单选题】He is an expert at chemistry.We all call him a ________
A.
chemistry
B.
chemica
C.
chemist
D.
physician
【简答题】What has made John so surprised? A．He discovered he wasn't registered in Chemistry 302A. B．He discovered he was registered in Chemistry 302B. C．He didn't know he was registered in Chemistry 302A and 3...
【单选题】听力原文：Bill told me that he would graduate in June if he could get the chemistry course he needs out of the way. (26)
A.
Bill will graduate in June even if he fails in his chemistry course.
B.
Bill intends to do graduate work in chemistry after June.
C.
Bill won't graduate in June, so he's going away.
D.
Bill must take the chemistry course before he can graduate in June.
【简答题】He gives students lessons at a school.
【简答题】封闭式基金通过在证券交易所挂牌交易实现流通，而开放式基金则通过投资者向基金管理公司申购和赎回来实现流通。 ( )
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