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An awkward-looking character such as Cyrano de Bergerac might sniff at the suggestion, but recent scientific research shows beauty, brains and brawn may in fact all be allied, writes Dr. Raj Persaud.(46) Psychologists have concluded that we may be drawn to the stereotypically attractive because of what their faces reveal about their intelligence and success in later life. In America, research led by Professor Leslie Zebrowitz, of Brandeis University, has shown an association between facial attractive and IQ. Strangers briefly exposed to a target’s face were able to correctly judge intelligence at levels significantly better than chance.The same team also researched how a person’s attractiveness might bear relation to their intelligence. They found that good-looking people did better in IQ tests as they aged. (47) Their research sought to prove that how a person perceived himself and was perceived by others predicted how intelligent he apparently became more accurately than his past intelligence. (48) Perhaps because the more attractive people were treated as more intelligent, they ended up having more stimulating and, therefore, intelligence-enhancing lives.Does this mean that your face really could be your destiny Sociologists Dr. Ulrich Mueller and Dr. Allan Mazur, of the University of Marburg in Germany, recently analyzed the final-year photographs of the 1950’s graduates of West Point in the United States. Dominant facial appearances turned out to be a consistent predictor of later-rank attainment.Again, they believed there could be a self-fulfilling effect. (49) Because some men looked more authoritative, they naturally drew respect and obedience from others which, in turn, assisted their rise through the ranks.A team at the Royal College of Surgeons in Dublin has been investigating the sensitive subject of links between physical and mental abnormalities. Led by Doctors Robin Hennessy and John Waddington, the team used a new laser surface-scanning technique to make a 3-D analysis of how facial shape might vary with brain structure. Their findings showed that in early fetal life, brain and face development are intimately connected. From this they concluded that abnormalities in brain elaboration probably also affect face development.This, according to them, explains the striking facial features of some one with Down’s syndrome. (50) Using similar techniques, the team also demonstrated how other disorders linked to brain aberrations could be associated with facial alterations.So the very latest scientific research suggests that nobody should try to look too obviously different from average. Psychologists have concluded that we may be drawn to the stereotypically attractive because of what their faces reveal about their intelligence and success in later life.

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In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.Open Shortest Path First (OSPF) is a (1) routing algorithm that (2) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (3) processing power. The (4) algorithm is used to calculate routes. OSPF routing table updates only take place when necessary, (5) at regular intervals. 1()

A. distance-vector
B. link-state
C. flow-based
D. selective flooding

Packet-switching wireless networks are preferable (41) when transmissions are (42) because of the way charges are (43) per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are (44) for the (45) of time they use the net-work.

A. to
B. for
C. than
D. only

为了进行差错控制,必须对传送的数据帧进行校验。在局域网中广泛使用的校验方法是 (1) 校验。CRC-16标准规定的生成多项式为G(x)=X16+X15+X2+1,它产生的校验码是 (2) 位,接收端发现错误后采取的措施是 (3) 。如果CRC的生成多项式为G(X)=X4+X+1,信息码宇为10110,则计算出的CRC校验码是 (4) 。要检查出d位错,码字之间的海明距离最小值应为 (5) 。 5()

A. d
B. d+1
C. d-1
D. 2d+1

帧中继网的虚电路建立在 (1) ,在用户层面采用的协议是 (2) 。这种网络没有流量控制功能,但增加了拥塞控制功能。如果沿着帧传送方向出现了拥塞,则把帧地址字段中的 (3) 位设置为1,这样接收方就可通过 (4) 协议要求发送方降低数据速率。最适合提供帧中继业务的网络是 (5) 。 1()

A. 数据链路层
B. 网络层
C. 传输层
D. 会话层

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