问题
单项选择题 B型题
三度房室阻滞()。
A.ORS波群增宽
B.P波与0RS波群无关
C.P-R间期逐渐延长,继之QRS波群脱落
D.P-R间期固定,有时QRS波群脱落
E.P-R间期延长
答案
参考答案:B
三度房室阻滞()。
A.ORS波群增宽
B.P波与0RS波群无关
C.P-R间期逐渐延长,继之QRS波群脱落
D.P-R间期固定,有时QRS波群脱落
E.P-R间期延长
参考答案:B
看图选择恰当的句子。 | ||
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1.![]() | John: Hello. Amy: Hi, John_____________. John: I'm doing my homework. Amy: __________________? John: It's rainy. How about New York? Amy:_____________. | |
2.![]() | Visitor: Excuse me. ____________? Chen: Look, it's on the second floor. This way, please. Visitor: And where is the art room? Chen: _____________. Visitor: Thank you. Chen: __________________. |