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【单选题】
患者,女性,62岁,用普鲁卡因行局部浸润麻醉后。出现不安,呼吸和心率增快血压升高等局麻药毒性反应,首先为了防此种情况,恰当的措施是:( )A.
药物直接注入血管
B.
一次性给足量麻醉药
C.
普鲁卡因中加入少量肾上腺素
D.
发生毒性反应减少用药量
E.
虚弱病人对药物反应较弱,应增加药量
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【单选题】The cause he had devoted himself to __________a perfect success.
A.
proving
B.
proved
C.
was proved
D.
has been proved
【单选题】－How was your day off yesterday? －Perfect! It was ____ birthday of my grandpa’s . We had a big f amily celebration.
A.
seventy
B.
seventieth
C.
the seventieth
【单选题】Kimiyuki Suda should be a perfect customer for Japan’s car-makers. He’s young, successful executive at an Internet-services company in Tokyo and has plenty of disposable ____. He used to own Toyota’s ...
A.
profit
B.
payment
C.
income
D.
budget
【单选题】当一个带电导体达到静电平衡时:
A.
表面上电荷密度较大处电势较高．
B.
导体内任一点与其表面上任一点的电势差等于零 .
C.
表面上电荷密度较小处电势较高．
D.
导体内部的电势比导体表面的电势高．
【单选题】9-17 当一个带电导体达到静电平衡时:( )
A.
表面上电荷密度较大处电势较高
B.
表面曲率较大处电势较高
C.
导体内部的电势比导体表面的电势高
D.
导体内任一点与其表面上任一点的电势差等于零
【单选题】Charles Darwin, a young man just out of university, knew perfect well that he had to depend on _____ when he set out on a voyage of discovery around the world.
A.
him
B.
himself
C.
themselves
D.
them
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