兴奋性突触后电位的产生,是由于下列哪种离子在突触后膜的通透性增高A.Ca2+ B.C

题型:单项选择题

问题:

兴奋性突触后电位的产生,是由于下列哪种离子在突触后膜的通透性增高

A.Ca2+

B.Cl-和K+,尤其是Cl-

C.Na+和K+,尤其是Na+

D.K+

考点:普通考研西医综合西医综合
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欧洲最长的河流是______河,被俄罗斯人称为“______”,河水注入______;注入北冰洋的河流有______、______、______;世界上最深的湖泊是______湖,最深处达1600多米。

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文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

删除:把多余的词用斜线(\)划掉。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

修改:在错的词下划一横线,在该词下面写出修改后的词。

注意:1、每处错误及修改均仅限一词。

2、只允许修改10处,多者(从11处起)不计分。

I saw a accident happen on my way to home this afternoon. A girl was crossing the street on a zebra crossing while a young man drove a motorbike towards her. The young man saw the girl and tried to stop, and he drove too fast to stop. He hit the girl and fell off his motorbike. The girl was bad hurt and couldn’t move. The young man didn’t know how to do. I ran to a phone box nearby and dialed 110. Soon the police reached. They sent her hospital at once. One of the policeman talked to the young man and wrote something down while he was talking. I thought it is very dangerous to drive very fast.

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融资风险分析中应重点分析资本供应风险、( )、汇率风险因素。

A.资金风险

B.利率风险

C.贸易风险

D.负债风险

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锁骨骨折移位情况是

A.内侧段向后上方移位

B.内侧段向前下方移位

C.外侧段向前下方移位

D.外侧段向后上方移位

E.内侧段向前上方移位

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老年人忌偏食,偏食习惯易造成食物()成分比例失调,长久下去导致身体缺乏营养

A、营养

B、酸碱

C、电解质

D、微量元素

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