问题
单项选择题
X线下见右上肺有多发的厚壁空洞，周围有较广泛的纤维条索影。应首先考虑的是
A．肺大疱
B．肺脓肿
C．浸润型肺结核空洞形成
D．慢性纤维空洞型肺结核
E．周围型肺癌空洞形成
答案
参考答案：D
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X线下见右上肺有多发的厚壁空洞，周围有较广泛的纤维条索影。应首先考虑的是
A．肺大疱
B．肺脓肿
C．浸润型肺结核空洞形成
D．慢性纤维空洞型肺结核
E．周围型肺癌空洞形成
参考答案：D
The umbrella is a very common object. It keeps the and the sun off the people. Most umbrellas can be folded up(折叠) so it is to carry them. However, the umbrella has not always been as as it is now. In the past, it was a symbol of importance. Some African countries still use umbrellas in this .Someone carries an umbrella and walks behind the king or important person. Umbrellas are very old. People in different parts of the world began to umbrellas at different times. The Chinese had them more than 3,000 years ago. From there, umbrellas to India and Egypt. In Greece and Rome, wouldn’t use them. They believed umbrellas were only for women. England was the first country in Europe where common people used umbrellas against rain. The weather there is very and umbrellas are very useful. Everybody uses umbrellas today. The next time you one, thinking that for centuries only great men and women used them, you’ll feel you are important people, too.
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