问题
单项选择题
有些医生在做内镜手术时会准备热生理盐水，用于浸泡内窥镜头，是为了（）。
A、冲洗伤口
B、镜头预加热防雾
C、补充水份
D、灌注在内镜内
E、灌注在冷光源内
答案
参考答案：B
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有些医生在做内镜手术时会准备热生理盐水，用于浸泡内窥镜头，是为了（）。
A、冲洗伤口
B、镜头预加热防雾
C、补充水份
D、灌注在内镜内
E、灌注在冷光源内
参考答案：B
完形填空。(10小题，每小题1分，共10分) More than three thousand languages are spoken in the world today . Many of these languages are spoken _36 small groups of people . On the 37 ,hand , over two hundred languages are spoken by one million or more people . Chinese is the language spoken by the ___38 ___number of people in the world . But English is most 39 spoken in the world . English is spoken by more than four hundred million people 40 their first language . It is 41 by most people in the U.S.A. , Great Britain , Canada , Australia and New Zealand . And it is 42 used very widely in many other countries of the world . Look at the back of your watch . You may see the English words “Made 43 China” , or “Japan” , even “Germany” . English is the first language in 44 of these . Why are English words 45 on it ? That is because in the modern world English is widely used for business between different countries .
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