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【单选题】
电流速断保护的动作电流应大于( )A.
被保护线路末端短路时的最大短路电流
B.
线路的最大负载电流
C.
相邻下一条线路末端短路时的最大短路电流
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反馈参考答案：
举一反三
【单选题】Why wasn't there a better early-warning system for the natural disaster, like the tsunamis?
A.
Because people were not afraid of that
B.
Because tsunamis never happens in Indian Ocean
C.
It would cost too much money
D.
It was difficult for the people in Indian Ocean region to expect such an experience
【简答题】Hurricane Andrew was the second costliest natural disaster in the United States.
【单选题】The earthquake is the most unpredictable natural Disaster．
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】The earth quake is the most unpredictable natural disaster．
A.
right
B.
wrong
C.
not mention
【单选题】女性，32岁。因感冒后1周，觉心悸、胸闷来诊；心电图示Ⅱ度文氏房室传导阻滞，其典型心电图特点是
A.
P—R间期进行性缩短伴QRS波脱漏
B.
P—R间期进行性延长
C.
R—R间期进行性缩短
D.
P—R间期进行性延长伴QRS波脱漏
E.
P—R间期固定伴3：2 QRS波脱漏
【单选题】Why Wasn't there a better early-warning system for the natural disaster, like the tsunamis?
A.
Because people were not afraid of that
B.
Because tsunamis never happens in Indian Ocean
C.
It would cost too much money
D.
It was difficult for the people in Indian Ocean region to expect such an experience
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