一般情况下，考虑宏观地震烈度时应参考的因素是（）。 A.地震能量的大小 B.地震时地

将患者各方面的医疗信息收集起来，按照规定和要求加以排序整理称为（）

A.病案整理

B.病案供应

C.病案登记

D.病案归档

E.病案控制

CPU配合Cache高速缓冲存储器工作，如果内存的存取周期时间为60ms，高速缓存的存取周期时间为15ms，命中率为90%，则高速缓冲单元的平均存取时间为( )。

A．22.75ms

B．21.75ms

C．18.5ms

D．19.5ms

关于市场营销人员的作用，说法正确的是（）

A市场营销人员创造消费者的需要

B市场营销人员并不创造消费者的需要，而是影响消费者的欲望

C可以开发及销售特定的服务或产品来满足消费者的欲望

D市场营销人员使人们购买并不需要的东西

The fact that most Americans live in urban areas does not mean that they reside in the center of large cities. In fact, more Americans live in the suburbs of large metropolitan areas than in the cities themselves.

The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs.

According to the Bureau, the political boundaries are less significant than the social and economic relationships and the transportation and communication systems that integrate a locale. The term used by the Bureau for an integrated metropolis is an MSA, which stands for Metropolitan Statistical Area. In general, an MSA is any area that contains a city and its surrounding suburbs and has a total population of 50,000 or more.At the present time, the Bureau reports more than 280 MSAs, which together account for 75 percent of the US population. In addition, the Bureau recognizes 18 megapolises, that is, continuous adjacent metropolitan areas. One of the most obvious megapolises includes a chain of hundreds of cities and suburbs across 10 states on the East Coast from Massachusetts to Virginia, including Boston, New York, and Washington, D.C. In the Eastern Corridor, as it is called, a population of 45 million inhabitants is concentrated. Another megapolis that is growing rapidly is the California coast from San Francisco through Los Angeles to San Diego.

According to the Bureau of the Census, what is an urban area().

A. A chain of adjacent cities.

B. An area with at least 50,000 people.

C. The 18 largest cities.

D. An area with 2,500 people or more.

Networks can be interconnected by different devices in the physical layer networks can be connected by (71) or hubs．which just move the bits from one network to an identical network．One layer up we find bridges and switches which operate at data link layer．They can accept (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe packer formats．In the transport layer we find transport gateway，which can interface between two transport connections Finally，in the application layer，application gateways translate message (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．

A．reapers

B．relays

C．packages

D．modems