[单选题]Air transport companies use different planes__________.

根据材料，完成下面的题目。Air Transportation1. Airplanes are used to carry passengers, cargo and mail. Air transport companies operate scheduled airlines and non-scheduled services over local, regional, national, and international routes. The aircraft operated by these companies range from small single-engine planes to large multiengine jet transports.2. The first air passenger services began in 1910, when dirigibles began operation between several German cities. The first scheduled airplane service to carry passengers began in the U. S in 1914. Several experimental airmail flights took place in India, Europe, and the United States before World War I, but air transport service did not become a true business until after the war.3. During World War Two, intercontinental air transport became firmly established. After the war the new long-distance transports with advanced facilities were increasingly able to avoid storms and strong wind and make flights more economical and consistent. A new generation of "jumbo-jet" transports began operations in 1970, and the supersonic transport entered passenger service in 1976.4. During the 1970s the number of domestic passengers on U. S airlines increased about 78%, and during the 1980s the figure was up about 58%. In 1990 there were 41.8 million international passengers, the figure was a 75% increase over 1980. The total cargo flown by U. S airlines almost doubled during the 1980s, from 5.7 billion to 10.6 billion ton-miles in 1990.5. Major airports provide a wide range of facilities for the convenience of millions of travelers. These range from such basic services as ticket-sales counters and restaurants to luxury hotels, shopping centers and play areas for children. International airports must also have customs areas and currency exchange counters and so on.Paragraph 2__________.

正确答案 ：A

in the development of air transportation

解析：【答案】A【解析】根据第一段可知，航空公司利用飞机运输旅客，货物和邮政。运营的飞机从单引擎到大型多引擎飞机。A为“在不同运输发展阶段使用不同飞机”符合逻辑和题意。因此，本题选A。

[单选题]John is eligible for this job.

正确答案 ：B

recommended 

解析：【题 干】John的工作很称职 。 【解 析】考查形容语。题干划线词eligible意为“合格的，有资格当选的”，所以正确答案为B。本题属于划线词与正确选项并非同义词或者近义词，而是基本含义相同、同时能使句子通顺的单词替换。

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