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【单选题】
男性,23岁,心悸.气短4年,水肿2。查体:BP 110/30mmHg,面色苍白,颈静脉怒张,心界大,心尖部杂音,肺动脉瓣区第2心音亢进,主动脉瓣区舒张期叹息样杂音,有水冲脉枪击音。超声:二尖瓣增厚,主动脉瓣关闭欠佳有反流。以下哪项措施不需要A.
预防风湿活动
B.
积极控制感染
C.
长期服用硝苯地平扩张动脉可使右室容量及重量减少
D.
ACEI和B体阻滞剂
E.
基肾上腺素
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举一反三
【单选题】ATP is the cells ’ major energy-carrying molecule, and in order for a cell to survive, the cell must be able to regenerate ATP when ATP levels drop. Which one of the following statements accurately de...
A.
ATP is more stable than ADP.
B.
ATP has more positively charged phosphate groups than ADP.
C.
Phosphate groups repel each other, which in ATP leads to strained bond formation.
D.
Heat from ATP hydrolysis is used to drive energy requiring processes.
E.
ATP is hydrolyzed directly in the cell.
【单选题】One energy-carrying substance in the cell is named as _____________ .
A.
adenosine triphosphate
B.
alkaloide
C.
phospholipid
D.
chlorophyll
【简答题】幼儿文学除了具有语言艺术一般的美学特征外,还有哪些审美特点。
【单选题】The energy acquired by a particle carrying a charge equal to that on the electron as a result of moving through a potential difference of one volt is referred to as ( ).
A.
a joule.
B.
an electron - volt.
C.
a coulomb.
D.
a proton - volt.
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