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阅读理解。 Who taught you to speak English? Your parents, while you were a young child? Your teachers at school? Perhaps even the BBC as a grown-up. Whoever it was, somehow you have developed an understanding of what is rapidly becoming a truly global language. There are now about 376 million people who speak English as their first language and about the same number who have learnt it besides their mother tongue. It is said there are one billion people learning English now and about 80% of the information on the Internet is in English. Is this a good thing, or a bad thing? Should we celebrate the fact that more and more of us can communicate, using a common language, across countries and cultures? Or should we worry about the dangers of 'mono-culturalism', a world in which we all speak the same language, eat the same food and listen to the same music? Does it matter if an increasing number of people speak the same language? On the contrary (相反), I would have thought-although I have never accepted the argument that if only we all understood each other better, there would be fewer wars. Ask the people of India (where many of them speak at least some English) and Pakistan (the same situation with India)… If we all speak English, will we then all start eating McDonald's burgers? Surely not. If English becomes more dominant (占主导地位的), it will kill other languages? I doubt it. When I travel in Africa or Asia, I am always surprised by how many people can speak not only their own language but also one or more other related languages, as well as English and perhaps some French or German as well. When we discussed this on Talking Point a couple of years ago, we received a wonderfully poetic email from a listener in Ireland. 'The English language is a beautiful language. Maybe it's like a rose,' he said. 'But who would ever want their garden just full of roses?' Well, I love roses, and I think they make a beautiful addition to any garden. But the way I see it, just by planting a few roses, you don't necessarily need to pull out everything else. If more and more people want to plant English roses, that's fine by me. 1. By saying 'Ask the people of India … and Pakistan' (in Paragraph 4), the author is trying to show that _____. [     ] A. speaking the same language doesn't necessarily bring peace B. wars can destroy the relationship between two countries C. English doesn't kill other languages D. English is widely used in the world 2. What does 'rose' in the last two paragraphs stand for? [     ] A. The world B. Family C. Language D. The Earth 3. The author would probably agree that _____. [     ] A. it's very hard to plant many kinds of flowers in a garden B. it's good for people from other countries to learn English C. more and more people like to plant roses in their gardens D. English is easier to learn than other languages 4. This passage is mainly about _____. [     ] A. why English has become a global language B. how many people in the world speak English C. how people in the world learn English as a foreign language D. whether we need to worry about English being a world language
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【单选题】滑阀是液压传动系统伺服阀的( )零件。
A.
一般性
B.
关键性
C.
重要性
D.
特殊性
【单选题】横掠单管时的对流换热中,特性尺度取( )。
A.
管长L
B.
管内径
C.
管外径
D.
-
【判断题】车身上的防撞吸能区在修复中尽量不要进行切割分离
A.
正确
B.
错误
【单选题】雅鲁藏布江是中国最长的高原河流,发源于我国的西藏自治区,在藏语中意为“高山流下的雪水”,经过藏南地区之后进入印度,改称布拉马普特拉河,进入孟加拉国后称为贾木纳河,在孟加拉国境内与恒河相汇,最后注入孟加拉湾。 读图1和下表,回答 3 ~6 题。 地点 年平均气温 ( 0 C ) 年太阳总辐射量 (亿焦耳/米 2 ·年) 年日照时数 (小时) 年降水量 (毫米) 甲城市 7.5 73.39 3007....
A.
孟加拉国地处南亚地区,是我国重要的陆上邻国
B.
孟加拉湾位于低纬度地区,该海域台风灾害多发
C.
雅鲁藏布江的发源地位于我国地势的第一级阶梯
D.
恒河最终注入孟加拉湾,属于太平洋水系
【判断题】( )滑阀是液压传动系统系统伺服阀的关键性零件。
A.
正确
B.
错误
【单选题】可促进Th1细胞生成的细胞因子是:
A.
IL-2
B.
IL-4
C.
IL-12
D.
IL-10
E.
IL-6
【判断题】( ) 滑阀是液压传动系统系统伺服阀的一般性零件。
A.
正确
B.
错误
【单选题】可促进Th2细胞生成的细胞因子是
A.
IL-2
B.
IL-12
C.
TGF-β
D.
IFN-γ
E.
IL-4
【单选题】Th2型细胞能分泌IL-4、IL-5等细胞因子,与B淋巴细胞增殖、分化、成熟有关,能促进抗体生成,增强抗体介导的体液免疫应答,还分泌IL-10、IL-13以及CCL-7等一些趋化因子。这些细胞因子在体内发挥着不同的生物学作用。可促进IgE类别转换的细胞因子是()
A.
IL-5
B.
IL-10
C.
IL-4
D.
IL-13
E.
CCL-7
【单选题】Th2型细胞能分泌IL-4、IL-5等细胞因子,与B淋巴细胞增殖、分化、成熟有关,能促进抗体生成,增强抗体介导的体液免疫应答,还分泌IL-10、IL-13以及CCL-7等一些趋化因子。这些细胞因子在体内发挥着不同的生物学作用。可抑制IL-2合成的细胞因子是()
A.
IL-13
B.
CCL-7
C.
IL-4
D.
IL-10
E.
IL-5
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