问题
单项选择题
女,32岁。诊断为风湿性心瓣膜病、肺部感染。超声心动图显示单纯二尖瓣狭窄,瓣膜无明显增厚,瓣口面积0.6cm2,伴有中度主动脉瓣关闭不全。下列哪项体征可能不出现()
A.二尖瓣开放拍击音
B.脉压增宽及周围血管征
C.左心室扩大
D.主动脉瓣第二听诊区舒张期叹气样杂音
E.心尖部第一心音亢进
答案
参考答案:B
女,32岁。诊断为风湿性心瓣膜病、肺部感染。超声心动图显示单纯二尖瓣狭窄,瓣膜无明显增厚,瓣口面积0.6cm2,伴有中度主动脉瓣关闭不全。下列哪项体征可能不出现()
A.二尖瓣开放拍击音
B.脉压增宽及周围血管征
C.左心室扩大
D.主动脉瓣第二听诊区舒张期叹气样杂音
E.心尖部第一心音亢进
参考答案:B
There is no doubt that the friends can improve our lives, kind of friend someone has. There are some good reasons why real are important. Real fiends can be a source(资源) of _ .When you are in trouble, for example, true friends will hope. Real fiends may help a friend to be as a student president,and the president of a country. Some of us will remember that school,work and life are better and more fun when with fiends. And there are other reasons why real friends are . You can quickly real and good fiends when you are down or when you need their help the most. Why? Because a real fiend will not you when you are down,and will not turn against you in jealousy(妒忌),for example,when you succeed.
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