问题
单项选择题
女性，34岁。活动后心悸、气促3年，加重伴双下肢水肿半年。查体：消瘦，贫血面容。双下肢水肿。心界不大，心音弱，未闻及杂音。腹部隆起，移动性浊音阳性。胸片提示：心影周围可见钙化影。最有可能的诊断是（）
A.二尖瓣狭窄
B.二尖瓣关闭不全
C.左房黏液瘤
D.慢性缩窄性心包炎
E.以上都不是
答案
参考答案：D
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女性，34岁。活动后心悸、气促3年，加重伴双下肢水肿半年。查体：消瘦，贫血面容。双下肢水肿。心界不大，心音弱，未闻及杂音。腹部隆起，移动性浊音阳性。胸片提示：心影周围可见钙化影。最有可能的诊断是（）
A.二尖瓣狭窄
B.二尖瓣关闭不全
C.左房黏液瘤
D.慢性缩窄性心包炎
E.以上都不是
参考答案：D
用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）.
We feel ____小题4:___ sorry for the loss of lives. There is ___小题5:____ we can do to bring the students back, but we can try to prevent (防止) such things from ____小题6:____ again. You should do the following things to prevent a stampede (踩踏)。 After class or school, don’t rush out at the same time. Wait until there are ___小题7:____ people trying to leave. When you walk with a crowd of people, stay alert (警惕的) and ____小题8:____ your steps. Don’t play around. Be familiar with your ___小题9:__ and learn where the safety exits are. When there’s pushing and squeezing (挤)， don’t move and try to hold on to something. ___小题10:__ stay in a corner until the crowd leaves. |