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【单选题】
下列有关缓冲溶液的描述错误的是？A.
缓冲溶液一般由较大浓度的弱酸及其共轭碱组成 ；
B.
缓冲溶液有抗碱，抗酸和抗稀释的作用 ；
C.
. 缓冲溶液是同离子效应的应用；
D.
缓冲溶液的缓冲能力是无限的 ；
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】钙泵的主要作用是
A.
降低细胞质中的 Ca 2+ 浓度
B.
提高细胞质中的 Ca 2+ 浓度
C.
降低线粒体中 Ca 2+ 浓度
D.
降低肌质网中 Ca 2+ 浓度
【简答题】若深海海面风向为NE风,则表层风海流的流向应为:在北半球为( )流;在南半球为()流
【简答题】The speaker compares a r sum to a _____________________ to the recruiting directors of the business world. 2. The speaker advises that one should ____________________________ when applying for a job. ...
【简答题】The speaker compares a resume to a ___________ to the recruiting directors of the business world. 2. The speaker advises that one should _________________ when applying for a job. 3. Recruitment offic...
【简答题】Complete the following statements according to what you have heard. The speaker compares a resume to a _________ to the recruiting directors of the business world. The speaker advises that one should ...
【简答题】温汤浸种的水温为( )摄氏度
【简答题】the speaker compares a resume to a ___________ to the recruiting directors of the business world. The speaker advises that one should _________________ when applying for a job. Recruitment officers wa...
【单选题】若深海海面风向为NE风,则表层风海流的流向应为:
A.
在北半球为南流、在南半球为西流
B.
在北半球为西流、在南半球为南流
C.
在北半球为东流、在南半球为北流
D.
在北半球为北流、在南半球为东流
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