【多选题】【消耗次数：1】
引起左心室后负荷加重的因素有（）
①
肺动脉瓣狭窄
②
主动脉瓣狭窄
③
主动脉瓣关闭不全
④
高血压
参考答案：
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相关题目
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符合风湿性心脏病主动脉瓣狭窄的典型体征是
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周围血管征阳性
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主动脉瓣区舒张期喷射样杂音
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主动脉瓣区收缩期隆隆样杂音
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主动脉瓣区舒张期隆隆样杂
音
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主动脉瓣区收缩期喷射样杂音
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女性，60岁，发现主动脉瓣狭窄10年，快走时心前区憋闷3年，心电图示左心室肥厚，该患者治疗宜首选（）
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主动脉瓣瓣膜置换术
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The government official explained that there’s no point ___________ about the cultural gap in that city.
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in worrying
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【单选题】
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giving
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【单选题】
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Sorry, he is busy at the moment
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No, you can’t
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Sorry, you can’t
④
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①
in
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①
No, of course not
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Do you mind if I said no?
③
Yes, sir, single or return?
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