问题
单项选择题
造斜过程中使用（）变向器，对清洗出桥塞和井底填充物最有效。
A、标准式
B、永久式
C、循环式
D、肘节
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
造斜过程中使用（）变向器，对清洗出桥塞和井底填充物最有效。
A、标准式
B、永久式
C、循环式
D、肘节
参考答案：C
完型填空（共20小题；每小题1．5分，满分30分） 阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上涂黑。 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 36 him for hours．He would 37 effortlessly in that gigantic sky, or he would come down and light on the 38 and float there beautifully．Sometimes when I watched him, he would not make a sound and liked to move 39 into the grasses．We called him meksikatsi, which in the Blackfoot language 40 “pink-colored feet”; meksikatsi and I became very good friends． The bird had a very particular significance to me 41 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 42 was impossible．And most of the things that I 43 about would not be possible for me but would be possible only for other people． When I was ten years old, something unexpected 44 my life suddenly．I found myself become an 45 child in a family I was not born into; I found myself in a 46 position that many native Americans find themselves in, living in a city that they do not understand at all, not in another culture but 47 two cultures． A teacher of the English language told me that meksikatsi was not called meksikatsi, even though that is what 48 people have called that bird for thousands of years．Meksikatsi, he said, was really “duck”．I was very 49 with English．I could not understand it．First of all, the bird did not look like “duck”, and when it made a 50 , it did not sound like “duck”, I was even more 51 when I found out that the meaning of the verb “to duck” came from the bird． As I 52 to understand English better, I understand that it made a great deal of 53 , but I never forgot that meksikatsi made a different kind of meaning．I 54 that languages are not just different words for the same things but totally different 55 , totally different ways of experiencing and looking at the world．
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