Please your seat in order, six persons for one table.

marketing consists of advertising and promoting your product or service in order to sell it.your business produces goods and services.marketing is what lets __1___ customers know that they are available for sale.sales, advertising, and public relations are each essential ___2___ of marketing and each require specialized skills and expertise.while a small business may have only one person performing all these functions under the marketing umbrella, knowledge of each area is important to develop a ___3___ effort.

a focus ___4____ what the customer wants and needs is essential __5____ successful marketing efforts.this customer-orientation should go hand-in-hand with the company’s objectives of maintaining a __6____ volume of sales.marketing is a creative process combining all the activities needed to __7___ both of these objectives.

the process of marketing begins __8____ discovering what product customers want to buy.providing the features and quality customers want is a/an ___9____ first step in marketing.you will be facing an uphill battle if you provide something you want to produce and then try to ___10_____ someone to buy it.

1.A.future

B.potential

C.invisible

D.visible

2.A.components

B.elements

C.features

D.factors

3.A.focusing

B.focused

C.fixed

D.fixing

4.A.to

B.on

C.at

D.in

5.A.on

B.at

C.to

D.in

6.A.profit

B.profitable

C.many

D.much

7.A.reach

B.get to

C.accomplish

D.achieve

8.A.with

B.in

C.at

D.by

9.A.critical

B.important

C.significant

D.necessary

10.A.ask

B.advise

C.persuade

D.convince

Please Fasten Your Seatbelts Severe turbulence (湍流) can kill aircraft passengers. Now, in test flights over the Rocky Mountains, NASA (美国航空航天局) engineers have successfully detected clear-air turbulence up to 10 seconds before an aircraft hits it.

Clear-air turbulence often catches pilots by surprise. Invisible to radar, it is difficult to forecast and can hurl (用力抛出去) passengers about the cabin. In December 1997, one passenger died and a hundred others were injured when unexpected rough air caused a United Airlines flight over the Pacific to drop 300 metres in a few seconds.

However, passengers can avoid serious injury by fastening their seatbelts. “It is the only antidote (对策) for this sort of things,” says Rod Bogue, project manager at NASA’s Dryden Flight Research Center in Edwards, California.

The centre’s new turbulence detector is based on lidar, or laser radar, Laser pulses are sent ahead of the plane and these are then reflected back by particles in the air. The technique depends on the Doppler effect. The wavelength of the light shifts according to the speed at which the particles are approaching. In calm air, the speed equals the plane’s airspeed. But as the particles swirl (打漩) in rough air, their speed of approach increases or decreases rapidly. The rate of change in speed corresponds to the severity (激烈程度) of the turbulence.

In a series of tests that began last month, a research jet flew repeatedly into disturbed air over the mountain ridges (山脉) near Pueblo, Colorado. The lidar detector spotted turbulence between 3 and 8 kilometres ahead, and its forecasts of strength and duration corresponded closely with the turbulence that the plane encountered.

Bogue says that he had “ a comfortable amount of time” to fasten his seatbelt. The researchers are planning to improve the lidar’s range with a more powerful beam. The system could be installed on commercial aircraft in the next few years.

第6题：What does “clear-air turbulence” probably mean? （Paragraph 1）

A．A not very rough storm.

B．Unexpected disturbed air.

C．A kind of visible storm.

D．A storm over mountain ridges.

某国际机场新航站楼火灾风险评估一、情景描述某航站楼建筑面积为8万m2;在建筑形式上，用简单的几何某国际机场新航站楼火灾风险评估 一、情景描述 某航站楼建筑面积为8万m2;在建筑形式上，用简单的几何大跨度结构创造出一个大空间体。实际大空间中会存在一些可燃物聚集的区域，火灾荷载密度较大，需根据可燃物的空间分布特性对危险源进行进一步辨识，考虑其发生火灾后的热释放速率和火灾蔓延情况。 根据本项目的特点采用针对性的性能化防火设计的思想和方法，对高大空间中的高火灾荷载区域采取相应措施。 二、问题 在性能化设计评估中，对高大空间中的高火灾荷载区域所采取的措施中防火单元一般如何设置