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问题 单项选择题

关于减推力，下列哪项是正确的（）

A.为了防止推力减小，V1应该减小

B.当实际起飞重量小于场长限制的起飞重量时，可以使用减推力

C.减推力主要是减噪程序

D.使用减推力是为了节省燃油

答案

参考答案：B

单项选择题

A management information system （） the business managers the information that they need to make decisions. Early business computers were used for simple operations such （） tracking inventory, billing, sales, or payroll data, with little detail or structure. Over time. these computer applicationsbecame more complex, hardware storage capacities grew, and technologies improved for connecting previously （） applications. As more data was stored and linked, managers sought greater abstraction as well as greater detail with the aim of creating significant management reports from the raw, stored （） . Originally，the term "MIS" described applications providing managers with information about sales, inventories, and other data that would help in （） the enterprise. Over time, the term broadened to include：decision support systems，resource management and human resource management，enterprise resource planning(ERP), enterprise performance management(EPM), supply chain management(SCM)，customer relationship management(CRM)，project management and database retrieval applications

Originally，the term "MIS" described applications providing managers with information about sales, inventories, and other data that would help in （） the enterprise

A．setting up

B．founding

C．improving

D．managing
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填空题

《民用航空法》规定，禁止旅客携带危险品乘坐民用航空器，所谓危险品是指对运输安全构成威胁的易燃、易爆、（）、易腐蚀、（）和（）。
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