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【单选题】
硝酸甘油治疗心绞痛的主要机制是A.
减慢心率，降低心肌耗氧量
B.
扩张冠状动脉，增加心肌耗氧
C.
扩张血管，反射性兴奋交感神经，增加心肌收缩力
D.
通过扩张外血管，降低心脏前、后负荷和心肌耗氧量
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【简答题】The word “sport” first meant somethin that people did in their free time. Later it often meant hunting (捕猎) wild animals and birds. About a hundred years ag o the word was first used for organized gam...
【单选题】初孕妇,岁,孕37周,下肢水肿一周,头痛12小时,无恶心呕吐。查体:血压21.3/13.3kPa(160/100mmhg),下肢水肿(+++),尿蛋白(+),透明管型0-2个/HP。下列不是该病的诱因的是
A.
季节变化
B.
吸烟
C.
精神因素
D.
贫血
E.
身材矮胖
【单选题】After all, ______ makes a new invention such a wonderful thing is ______ it allows us to do something we could not do before. [ ]
A.
what ; what
B.
that ; that
C.
what; that
D.
that; what
【单选题】初孕妇,30岁。孕37周,下肢水肿1周,头痛12小时,无恶心呕吐。查体:血压21.3/13.3kPa( 160/100mmHg),下肢水肿(+++),尿蛋白(+) ,透明管型0~2/HP。下列不是该病的诱因的是
A.
季节变化
B.
吸烟
C.
精神因素
D.
贫血
E.
身材矮胖
【单选题】There’s somethin g wrong with your telephone, ?
A.
isn’t there
B.
isn’t it
C.
is it
D.
is there
【单选题】-They are supposed to arrive at six ,but there is still no sign of them. -Something unexpected_________ to them.
A.
might happen
B.
must have happened
C.
would have happened
D.
could happen
【简答题】·Look at the note below． ·You will hear a man calling to buy somethin9． Telephone Message Date： 1 April Time：8．45 Item： buying （9） __________ Purpose： 10 for meeting room，（10）__________for the office ...
【单选题】A word is a symbol that ______.
A.
is used by the same speech community
B.
represents something else in the world
C.
is both simple and complex in nature
D.
shows different ideas in different sounds
相关题目：
【单选题】There’s somethin g wrong with your telephone, ?
A.
isn’t there
B.
isn’t it
C.
is it
D.
is there
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