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When designing the coverage area for high call capacity, what two actions should be done with data rates and channels?（）
A . Avoid channels with high AP co-channel interference.
B . Use channels with high AP co-channel interference to avoid channel roams.
C . Set the 2.4-GHz data rate of 5.5 Mb/s to required.
D . Use 5-GHz channels when possible.
E . Use 2.4-GHz channels when possible.
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A design requires 100 access points with high channel bandwidth and disabled lower data rates.How are the data rates set on the Cisco WLC and Cisco WCS？（）
A . per SSID
B . per access point
C . globally
D . per WLAN and radio
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A recent ________ was that about 20 per cent of college graduates joined the army of the unemployed last year.
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Politically these nations tend to be ________， with very high birth rates but poor education and very low levels of literacy.
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The _____ caused a lot of unemployment.
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2. Why did the unemployment rate fall?
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Contrary to what some correspondents think, it doesn’t _________ the unemployment rate.
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It is reported that the unemployed______great threat of economic crisis this winter.
A．is facing
B．are facing
C．is under
D．have been
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The pausage is mainly about_________． A．the high injury rates forthose doing exercises B．the ways to avoid exerciseinjuries C．the evidences or the seriousness of exercise injuries D．the studies about injuryrates and causes for injuries
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The management of two Panizza restaurants has an ongoing disagreement over the discount rate given to students from the local high school. This is an example of ________ conflict.
A、 intensive
B、 selective
C、 exclusive
D、 horizontal
E、 vertical
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Unemployment in this country is quite high, especially the senior workers（).
A. junior
B. early
C. experienced
D. elderly
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In the long run, there is trade-off relation between inflation rate and unemployment rate. （ ）
对
错
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With fixed exchange rates, fiscal policy is more powerful with a high degree of capital mobility than with a low degree of capital mobility.（ ）
对
错
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Wages of the part-time work offered to the unemployed men come from ______.
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In the three months, Hong Kong's unemployment rate has ______.
A．increased slowly
B．decreased slowly
C．stayed steady
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Which is NOT the reason for the high divorce rate？
A．The past economic bond has been relieved.
B．Big family pressures on marriage has disappeared.
C．Both men and women are still looking for a better partner after marriage.
D．Basic need for intimacy, dependency and sex can be satisfied.
此题为多项选择题。
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The rate of population growth is fastest in underdeveloped countries. In these countries a high birthrate is accompanied by a lowered death rate thanks to improved standards of public health. Ideally it should be possible to counter balance the effect of a reduced death rate by all increased use of family planning. In practice, however, population control is a complex matter. Throughout history people have determined the size of their families according to the cultural values of their societies.
Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the development of facilities such as sports, roads and railways, which are not likely to be built unless there is a big demand to justify them. Similarly, it can be argued that the public costs of society will not be so heavy to each individual if they are shared among the members of a large population.
One of the difficulties in implementing birth control lies in the fact that the official attitudes to population growth vary from country to country. In underdeveloped countries where a large population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of government to place a limit on the birthrate. In a well-developed society the problem may be more complex. A declining birthrate may lead to unemployment because it results in a shrinking market. Cities with a declining population may have to face the prospect of a shrinking tax base and a fall in land values. If there are fewer children going to school, teachers may be thrown out of work. When the pressure of population on housing declines, prices also decline and the building industry is weakened. Faced with considerations such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable or in decline.
The writer suggests that policy makers should consider cultural values ______.
A．in carrying out family planning
B．in producing birth control drugs
C．in improving public health standards
D．in introducing birth control techniques
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Which one of the following statements about cyclical unemployment is not correct？______.
A．Cyclical unemployment exists when there are more job vacancies than there are individuals looking for jobs.
B．Cyclical unemployment exists when there is a GNP gap.
C．Cyclical unemployment is not included in the natural rate of unemployment.
D．The duration of cyclical unemployment is affected by the level of aggregate demand.
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（） We subconsciously believe that we are the targets of this advertising, and that the high-cost products and lifestyles portrayed are our birthright as Americans. This leads us to spend well beyond our means. In fact, during the near-peak of the recent economic boom, the personal savings rate was in negative territory. 题目: What is the meaning of “ spend well beyond our means ” ？
A．They spend more money than they have
B．They try to save as much money as they can．
C．They do not spend money．
D．They have a lower incom
E．
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Unemployment rates are usually higher in Europe than in the United States because:
A．theminimumwageishigherintheUnitedStatesthaninEurope
B．U．S．economicpolicyismuchmoreeffectivethanEuropeaneconomicpolicy．
C．therearemoreunskilled,uneducatedworkersinEuropethanintheUnitedStates．
D．unemploymentbenefitsaremoregenerousinEuropethanintheUnitedStates．
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统计决策法Statistical decision method 使用序贯概率检测（SPRT）的方法对实测的压力、流量进行分析，计算连续发生泄漏的概率，并利用最小二乘法进行泄漏点定位。The measured pressure and flow rate were analyzed with the method of sequential probability detection (SPRT), the probability of continuous leakage was calculated, and the least square method was used to locate the leakage point. 缺点：对仪器的要求比较高Disadvantages： high requirements on instruments
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Wht is the current sitution of job mrket in the US Unemployment rte is still chnginWht is the current sitution of job mrket in the US Unemployment rte is still chnging. B．Job offers only rech hlf of the estimted number. C．There is no employment growth inugust. D．Therere decreses of vcncies inmericn businesses.
A．Unemployment rate is still changing．
B．Job offers only reach half of the estimated number．
C．There is no employment growth in August．
D．There are decreases of vacancies in American businesses．
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The car runs （) the rate of 100km an hour on the high way.
A．at
B．on
C．in
D．from
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When people become unemployed, it is________ which is often worse than lack of wages.
A．idleness
B．inability
C．poverty
D．laziness
