产品价格的上升通常会使其销量减少，除非价格上升的同时伴随着质_爱下问搜题

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问题单项选择题

产品价格的上升通常会使其销量减少，除非价格上升的同时伴随着质量的提高。时装却是一个例外。在某时装店，一款女装标价86元无人问津，老板灵机一动改为286元，衣服却很快售出。
如果以下陈述为真，哪一项最能解释上述反常现象( )

A．在时装市场上，服装产品是充分竞争性产品
B．许多消费者在购买服装时，看重电视广告或名人对服装的评价
C．有的女士购买时装时往往不买最好，只买最贵
D．消费者常常以价格的高低作为判断服装质量的主要标尺

答案

参考答案：D

解析：题干的反常现象是：女装价格的上升导致其销量的增加。充分竞争性产品价格上升应该导致销量下降，A项无法解释题干现象；B项如果为真，则价格的变化不会对消费者产生影响，无法解释题干现象；C项只是部分女士的价值取向，且对这部分女士来说，该女装也很可能不是最贵的，无法解释题干现象：只有D项说明因为女装价格上升使顾客以为该女装的质量更好，从而导致了销量的增加，解释了题干的现象。故答案选D。

多项选择题

施工资源管理的类型包括( )等。

A．若干个施工项目的施工资源管理

B．群体工程的施工资源管理

C．一个施工项目的施工资源管理

D．若干个施工企业的施工资源管理

E．一个施工企业的施工资源管理

阅读理解

A. Drug overuse and its consequence
B. The problem of drug overuse in America
C. Benefits of medicine and its wise use
D. Female drug overuse with reference to that of males
E. Misuse of medicine among the young generation
F. Improper use of medicine among senior citizens

1._____
     Nowadays,millions of people misuse and even overuse pain medications and other drugs.Research
by the American National Institute on Drug Abuse (NIDA,1999) shows that around 2% of the
population over age 12 were using drugs nonmedically.
2. _____
     NIDA views medications as a powerful force for good in the contemporary world.They reduce and
remove pain for millions of people suffering from illness and disease.They make it possible for doctors
to perform complicated surgery to save lives.Many people afflicted by serious medical conditions are
able to control their symptoms and become active,contributing citizens.NIDA points out that most
individuals who take these drugs use them in a responsible.
3. _____
     Nevertheless,overuse of drugs such as opium,central nervous system (CNS) depressants and
stimulants does lead to harmful reliance in some people and is therefore becoming a serious public
health concern.Although this abuse affects many people worldwide,particular trends of concern to the
medical profession in the US appear among older adults,teenagers and women.
4. _____
    Though it may be a surprise to many,the misuse of medications may be the most common form of
drug abuse among the elderly.Dr Kenneth Schrader of Duke University,North Carolina states that
although the elderly represent about 13% of the US population,those aged 65 and over account for
the consumption of one third of all drugs.People in this age group use medications roughly three times
more than the general population and have poorer compliance with instruction for use.In another study
of elderly patients admitted to treatment programs,70% were women who had overused medicines.
5. ____
    Unfortunately,this trend among women does not only affect those aged over 65.In general,among women and men who are using either an antianxiety drug or a sedative,women are twice as likely to become addicted.In addition,statistics compiled for 12～17 year olds show that teenage girls are more likely than teenage boys to begin overusing psychotherapeutic medication such as painkillers,tranquillizers,stimulants and sedatives.