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问题 单项选择题

肥厚型心肌病心电图上出现病理性Q波最可能的机制是（）

A.心肌纤维化灶性坏死

B.心肌过度肥厚引起心肌缺血加重

C.左心室肥厚室内传导阻滞

D.心肌间质水肿

E.肥厚的室间隔除极向量增大

答案

参考答案：E

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请根据上下文和所给的首字母，补全空格内的词，使短文通顺。

Many students are hurt or killed in d___小题1:___ kinds of accidents. Chen Haoyu, a teacher at Beijing No. 25 Middle School and a self-protection expert, gives young students a _小题2:_ on how to deal with danger. If you are robbed(被抢劫), keep calm. If you can not cry for help or run away, give the robber your money. Try to r___小题3:__ what the man looks like and tell the p__小题4:__ later.

If you are in a traffic accident, and if you are h__小题5:___ by a car, remember the number of the car; if it is a bicycle, try to contact your parents before you let the rider go. If it is raining hard and there is lightning, don’t stay in h_小题6:__places and keep away from big t____小题7:___.

When there is a fire, get away as fast as you can. Put something w___小题8:___ on your body and try to find an exit(出口). Do not take the elevator! If someone is drowning(溺水) and if you can’t s__小题9:__, don’t get into the water. Cry out for help. Remember that danger is never as far away as you think. Look after y____小题10:___ at all times.
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单项选择题

女孩10岁，4周前因猩红热用青霉素治疗好转，2周后又高热不退，四肢关节酸痛，查体：体温39℃，精神好，皮疹（-），心率160次／分，奔马律，血培养（-），该患者最可能的诊断是（）。

A.扁桃体炎

B.败血症

C.伤寒

D.风湿热

E.肺炎
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