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【单选题】
Na + -K+泵的直接作用是A.
可促进膜内K +外流
B.
促进膜外Na+内流
C.
可使膜内外Na+浓度达到平衡
D.
使膜内外K+浓度趋于平衡
E.
可维持膜内外Na+、K+浓度差
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【单选题】关于“敬业”，正确的说法是（ ）
A.
敬业的判断标准是是否扎实工作、注重细节
B.
敬业的本质在于心理活动
C.
敬业是对从业人员最根本、最核心的要求
D.
敬业需要理性和冷静，不提倡激情
【简答题】语法填空 Some people live in the world for body while others for dignity. I once took a walk along the street 1.________a Saturday dusk, with a Pepsi can in my hand.An old woman in ragged clothes, 2._____...
【简答题】语法填空。 阅读下面短文.,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适 当的词或使用括号中词语的正确形式填空. Some people live in the world for body while others for dignity(尊严). I once took a walk along the street on a Saturday dusk, with a Peps...
【单选题】听力原文： Robert Spring, a 19th century forger, was so good at his profession that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England i...
A.
There was a greater demand there than in America.
B.
There was less chance of being detected there.
C.
Britain was Spring's birthplace.
D.
The price were higher in England and Canada.
【简答题】语法填空。 阅读下面短文，根据上下文在空白处填上适当的词，或使用括号中的词语的正确形式 填空。 Once there lived a rich man 1 wanted to do something for the people of his town. 2 first he wanted to find out whether they deserved his help. In the ce...
【简答题】语法填空 A farmer once organized a competition between his dog and his rabbit.He dug a hole in one of his biggest fields，and hid a carrot and a bone in it.He wanted to see 1.________ animal would find the...
【单选题】Robert Spring, a 19th-century forger, was so good at his job that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England in 1813 and ar...
A.
There was a greater demand there than in America.
B.
There was less chance of being discovered there.
C.
Britain was Spring's birthplace.
D.
The prices were higher in England and Canada than the ones in America.
相关题目：
【单选题】关于“敬业”，正确的说法是（ ）
A.
敬业的判断标准是是否扎实工作、注重细节
B.
敬业的本质在于心理活动
C.
敬业是对从业人员最根本、最核心的要求
D.
敬业需要理性和冷静，不提倡激情
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