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【单选题】
某急性肾衰病人,血钾>6.5mmol/L时,给予10%葡萄糖酸钙静脉注射,其作用机理A.
血总钙降低
B.
脑水肿
C.
血游离钙降低
D.
低血钾
E.
碱中毒
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举一反三
【简答题】A．They grew only in certain sections of the country. B．They preferred raw. C．They were preferred raw. D．They did not exist in England.
【单选题】对氢原子和类氢离子的量子数 l ,下列叙述不正确的是( )
A.
l 的取值规定了 m 的取值范围
B.
它的取值与体系的能量大小有关系
C.
它的最大取值由解R的方程决定
D.
它的取值决定了轨道角动量M的大小
【单选题】_______ in the accident.
A.
Only were five men seriously hurt
B.
Only did five men were seriously hurt
C.
Only five men were seriously hurt
D.
Only five men were seriously hurted
【单选题】对氢原子和类氢离子的量子数l，下列叙述不正确的是( )。
A.
l的取值规定了m的取值范围
B.
l的取值与体系能量大小有关
C.
l的最大可能取值由解R方程决定
D.
l的取值决定了｜M｜＝
【单选题】Not only_______polluted but_______crowded.
A.
was the city;were the streets
B.
the city was;were the streets
C.
was the city;the streets were
D.
the city was;the streets were
【单选题】. The film which was shown yesterday was very boring, and there were only 20 people in the cinema ________.
A.
above all
B.
after all
C.
at all
D.
in all
【单选题】对氢原子和类氢离子的量子数L，下列叙述不正确的是（）
A.
L的取值规定了m的取值范围
B.
它的取值与体系能量大小有关
C.
它的最大可能取值有解R方程决定
D.
它的取值决定了角动量的大小
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