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【单选题】
以下不属于冲动形成异常的心律失常是( )
【单选题】
下列对旁路参与的心房颤动和心房扑动叙述有误的是
①
当心房颤动或心房扑动合并旁路时,由于许多冲动可以沿旁路下传,所以心室率可以很快
②
QRS波群通常宽大畸形。心房颤动时,但QRS波群规整
③
由于阻滞房室结的干预措施可以加速旁路传导,所以禁止使用
⑤
W-P-W综合征如合并心房颤动,可能引发生室颤
【单选题】
Ithinkscienceis _______ anJapanese.
【单选题】
Ithinkthestoryisnotso ________ asthatone.
【单选题】
When I saw Mary , she __________ on the piano.
【单选题】
It was said that his father _________ .
【单选题】
Mymotherisno ________ young.
【单选题】
I haven’t finished my composition . I ________ for two hours and a half.
【单选题】
I will __________ here till you give me some money.
【单选题】
“ Has he seen this film ? ” “Yes. He _________ it several days ago.”
【单选题】
A hunter is a man who __________ animals.
【单选题】
These children are _________ this year than they were last year.