问题
单项选择题
二尖瓣脱垂时心音可见（）
A.收缩晚期喀喇音
B.收缩早期喀喇音
C.全收缩期杂音
D.收缩中期喀喇音
E.第二心音分裂增宽
答案
参考答案：D
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二尖瓣脱垂时心音可见（）
A.收缩晚期喀喇音
B.收缩早期喀喇音
C.全收缩期杂音
D.收缩中期喀喇音
E.第二心音分裂增宽
参考答案：D
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many, many years ago. We had finished the noodles at the end of the meal, when the 1 said, "Let's take it in turns to talk about our experiences." Cathy started, "I have travelled a lot. I have visited many 2 because of my work. I have seen the River Amazon, stopped in Paris and seen the snow in Canada. I've also been riding on a camel in the Arabian Desert." Joyce said, "1 have been very 3 and am rich. I have opened many businesses, worked hard and had plenty of good ideas. So if you 4 help in doing business, I'll always be glad to give you a hand." "Well, I have done a lot of good things. I 5 people in hospital, raise money for the hospital's services and help people," said Ricky. Next was Ken. Once he was a 6 little boy; now he was a serious older man with heavy glasses and not much hair. "I have worked in a science research centre. I have been busy in my laboratory day after day. I have always been thinking about the future ana helping us 7 it" Then there was silence. "So what about you. Mary?" Mary smiled 8 , "I have done everything you have done." "How can that be ?" "I have travelled all around the world and into space and into the past and many other wonderful things, all through the world of books..." |