问题
单项选择题
肝、胆、胰CT检查口服稀释阳性对比剂的目的是（）。
A.能使被观察部位与胃肠道区分开来
B.观察肝胆消化液的分泌功能
C.观察肝胆内病变是否引起胃肠道阻塞
D.保护胃黏膜不受辐射线的损伤
E.以上都是
答案
参考答案：A
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肝、胆、胰CT检查口服稀释阳性对比剂的目的是（）。
A.能使被观察部位与胃肠道区分开来
B.观察肝胆消化液的分泌功能
C.观察肝胆内病变是否引起胃肠道阻塞
D.保护胃黏膜不受辐射线的损伤
E.以上都是
参考答案：A
| 完形填空。 | ||||
| When I was about five years old, I used to watch a bird in the skies of southern Alberta from the Blackfoot Blood Reserve in northern Montana where I was born.I loved this bird; I would 1 him for hours. He would 2 effortlessly in that gigantic sky, or he would come down and light on the 3 and float there beautifully. Sometimes when I watched him, he would not make a sound and liked to move 4 into the grasses. We called him meksikatsi, which in the Blackfoot language 5 "pink-colored feet"; meksikatsi and I became very good friends. The bird had a very particular significance to me 6 I desperately wanted to be able to fly too. I felt very much as if I was the kind of person who had been born into a world where 7 was impossible. And most of the things that I 8 about would not be possible for me but would be possible only for other people. When I was ten years old, something unexpected 9 my life suddenly. I found myself become an 10 child in a family I was not born into; I found myself in a 11 position that many native Americans find themselves in, living in a city that they do not understand at all, not in another culture but 12 two cultures. A teacher of the English language told me that meksikatsi was not called meksikatsi, even though that is what 13 people have called that bird for thousands of years. Meksikatsi, he said, was really "duck". I was very 14 with English. I could not understand it. First of all, the bird did not look like"duck", and when it made a 15 , it did not sound like "duck", I was even more 16 when I found out that the meaning of the verb "to duck" came from the bird. As I 17 to understand English better, I understand that it made a great deal of 18 , but I never forgot that meksikatsi made a different kind of meaning. I 19 that languages are not just different words for the same things but totally different 20 , totally different ways of experiencing and looking at the world. | ||||
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