A)根据语境从方框中选择恰当的单词填空，有的需要变换形式。

下列反应中，△H和△S均大于0的是（   ）

。阅读下列材料：

材料一  穆罕默德·阿里率领埃及人民抵御了英、法的殖民主义侵略，但是他也经受了西方工业文明的洗礼。他审时度势，认识到“应向西方寻找发展的钥匙”，“真正的独立需要有一支能够抵抗西方入侵的现代化军队，而现代化军队需要建立起现代化工业，以提供必要的军事装备”。

材料二   以林则徐为代表的中国地主阶级改革派，对阿里改革评价很高。林则徐的《四洲志》、魏源的《海国图志》，对埃及的政治、经济、军事、文化作了全面介绍，对阿里内政和对外扩张作了评述。魏源说，阿里“甚聪明，尤灭弄权之骁骑”；招士通商，训练阵法与列国无异。

请回答：

    Our country used to be very poor in technology, but great changes have taken place these years. Lots of our technology is much better than those of foreign countries. High-speed railway technology is one example.

    We learned about high-speed railway technology from foreign countries, but now we have mastered(掌握）and developed the key technology. Our high-speed railway technology is advanced. It can not only have a high speed but also be used in different environment and the cost is lower.

    China Railway Corp (CRC) is fully prepared to sell a full supply of high -speed railway technology. The company said selling of railway technology and building railways for other countries are going very well, and progress is being made in a number of countries. We have a major advantage. We are able to sell whole railway technology. It isn't very good to buy some technology from one country and other technology from another.

    The selling plan for our high-speed railway technology will follow the Silk Road Economic Belt and the 21st Century Maritime Silk Road (一带一路).

    Like the US-made Boeing 737 and France's Airbus, our high-speed railway technology could be an important project to help sell our technology in the future.