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【单选题】
影响神经纤维动作电位幅度的主要因素是A.
刺激时间
B.
刺激强度
C.
神经纤维的直径
D.
阈电位的水平
E.
细胞内、外的Na+浓度差
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举一反三
【单选题】According to the author, what is the major reason for many students not to pay their own tuition by themselves?
A.
Their schools give them scholarships
B.
Their parents pay the tuition for them
C.
They are not willing to pay or contribute
D.
They are not capable of paying for college
【简答题】Many Chinese students don't pay much attention to spoken English at school. 许多中国学生在学习时不太重视英语口语。They think it necessary to practice speaking English in class. Here is a story to show you how important ...
【简答题】钢材经过冷加工冷拉、冷弯、冲孔、机械剪切所产生的冷作硬化应变硬化后，其( )基本保持不变。 A抗拉强度和屈服强度 B塑性 C韧性 D弹性模量
【简答题】Identify from which paragraph the information is derived. A law passed recently allows many students to pay no more than one tenth of their income for their college loans.
【判断题】According to the author, many students work in order to pay for the luxuries.
A.
正确
B.
错误
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