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Lesson one Reading comprehension 1 Why Standards are Necessary Civil aviation is a powerful force for progress in our modern global society. A healthy and growing air transport system creates millions of jobs worldwide. It forms part of the economic lifeline of many countries. It is a catalyst for travel and tourism, the world’s largest industry. Beyond economics, air transport enriches the social and cultural fabric of society and contributes to the attainment of peace and prosperity throughout the world. Twenty-four hours a day, 365 days of the year, an aeroplane takes off and lands every few seconds somewhere on the face of the earth. Every one of these flights is handled in the same, uniform manner, whether by air traffic control, airport authorities or pilots in control of their aircraft. Behind the scenes are millions of employees involved in manufacturing, maintenance and monitoring of the products and services required in the never-ending cycle of flights. In fact, modern aviation is one of the most complex systems of interaction between human beings and machines ever created. This clock-work precision in procedures and systems is made possible by the existence of universally accepted standards known as Standards and Recommended Practices, or SARPs. SARPs cover all technical and operational aspects of international civil aviation, such as safety, personnel licensing, operation of aircraft, aerodromes, air traffic services, accident investigation and the environment. Without SARPs, our aviation system would be at best chaotic and at worst unsafe. How are SARPs created? What makes them so effective today and how can they ensure the safe, efficient and orderly growth of international civil aviation in the years to come? The answer lies in the four “C’s” of aviation: cooperation, consensus, compliance and commitment. Cooperation is in the formulation of SARPs, consensus in their approval, compliance in their application, and commitment of adherence to this on-going process. The formulation of new or revised SARPs begins with a proposal for action from ICAO itself or from its Contracting States. Proposals also may be submitted by international organizations. (334 words)
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【单选题】鉴别肠道致病菌和非致病菌经常选用
A.
吲哚试验
B.
葡萄糖发酵试验
C.
菊糖发酵试验
D.
乳糖发酵试验
E.
甘露醇发酵试验
【单选题】鉴别肠道致病菌和非致病菌经常选用
A.
葡萄糖发酵试验
B.
菊糖发酵试验
C.
吲哚试验
D.
乳糖发酵试验
E.
甘露醇发酵试验
【单选题】种阜疤痕;有毒。有此特征的药材是,()
A.
栀子
B.
巴豆
C.
川楝子
D.
诃子
E.
益智
【单选题】形位公差带的方向和位置是否浮动是确定( )的依据。
A.
形位精度
B.
加工装夹方式
C.
形位误差大小
D.
零件合格与否
【判断题】流行跟时髦其实是一样的,没有什么区别。
A.
正确
B.
错误
【简答题】教育技术是关于 与 的设计、开发、利用、管理和评价的理论与实践。
【单选题】信用标准是企业可以接受的客户的信用程度,其判断标准是( )
A.
赊销比率
B.
预计坏账损失率
C.
应收账款回收率
D.
现金折扣
【单选题】信用标准是企业可以接受的客户的信用程度,其判断标准是(    )。
A.
预计坏账损失率    
B.
应收账款回收期  
C.
赊销比率    
D.
现金折扣
【判断题】信用标准是企业可以接受客户的信用程度,它通常以应收账款周转率为判断标准。
A.
正确
B.
错误
【简答题】下列有关有形资产净值债务率与产权比率的关系的说法中不正确的是( )。
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