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【单选题】
Part I Reading Comprehension Section A (15 marks) In this section, there is one passage followed by five questions. For each question, there are four choices marked A, B, C and D. You should decide on the best choice, and then mark the corresponding letter on the answer sheet with a single line through the centre. Questions 1 to 5 are based on the following passage. When e-mail first came into general use about fifteen years ago, there was a lot of talk about the imminent arrival of the paperless office. However, it seems that e-mail has yet to revolutionise office communication. According to communications analyst Richard Metcalf, some offices have actually seen an increase in paper as a result of e -mail. "Information in the form of e-mail messages now floods our computer screens. These messages can be sent so quickly that memos tend to be distributed in the hundreds. For those secretaries whose bosses ask them to print out all their e -mails and leave them in their in-trays, this means using up a great deal of paper every month," Metcalf says. Metcalf has found that because some e-mails get lost in cyberspace, PAs are increasingly likely to be asked by clients and colleagues to send all important documents both bye-mail and by fax or "snail mail" - through the post. This highlights a further potential problem with e-mail in today's offices - it is taking up time rather than saving it. "With e-mail, communication is much easier, but there is also more room for misunderstandings," says psychologist Dr David Lewis. Generally, much less care is taken with e -mails than with letters or faxes and the sender will probably print the document and reread it before putting it in an envelope or sending it by fax. More worrying is still the increasing misuse of e-mail for sending "flame-mail" - abusive or inappropriate e-mail messages. Recent research in several companies suggests that aggressive communications like this are on the increase. E-mail has become the perfect medium for expressing workplace frustration because it is so instant. E-mail can also be a problem in other ways. Staff all too often make the mistake of thinking that the contents of an e-mail, like things said over the phone, are private and not permanent. But it is not only possible for an employer to read all your e-mails, it is also perfectly legal. E-mail messages can be traced back to their origin for a period of at least two years, so you might want to rethink e -mailing your frustrations about your job to your friends. The advice is to keep personal e-mails out of the office. It goes without saying that e-mail exists to make life easier, and if used correctly, it is an invaluable tool for businesses of all sizes. But perhaps, for the time being, the fact that in the business world 70 percent of all documents are still in paper form is not such a bad thing after all. 46. Why has the promise of the paperless office not come true in many offices?
A.
People write more memos than they used to.
B.
Many secretaries keep paper copies of everything their bosses send and receive.
C.
Many managers prefer to read their messages on paper.
D.
Staff leave messages lying around their offices.
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【简答题】试析无差异曲线总是向右下方倾斜,凸向原点的原因。 无差异曲线是用于表示在消费者偏好不变的情况下,获得既定满足的两种商品的各种数量组合点的轨迹。无差异曲线的斜率绝对值可以用 来表示,其中x、y的变动方向相反,使得△x/△y始终为负,从而决定了无差异曲线向右下方倾斜。由于边际替代率递减规律的作用,即随着对商品x的消费数量的增加,无差异曲线的斜率的绝对值是递减的,故无差异曲线凸向原点。
【单选题】由于无差异曲线的斜率的绝对值是递减的,因此,无差异曲线
A.
凸向原点
B.
凹向原点
C.
是一条向右下方倾斜的直线
D.
呈直角形状
【多选题】关于消费者均衡理论表述正确的是( )
A.
基数效用论认为效用是可以用数值表示的
B.
消费者均衡意味着消费者在既定收入条件下购买了给其提供最大效用的商品组合
C.
假设一个消费者每月用300元购买两类食品:水果X,每千克8元;蔬菜Y,每千克4元,则预算线方程可以表示为300=8X+4Y
D.
由于商品的边际替代率递减规律,无差异曲线的斜率的绝对值是递减的,因而无差异曲线凸向原点
【单选题】环境变量PATH中含有多个路径时,路径和路径之间可以用哪项来分隔
A.
;
B.
C.
|
D.
.
【单选题】早期的计算机主要应用于()
A.
辅助设计
B.
科学计算
C.
过程控制
D.
信息处理
【单选题】土一般由土颗粒、( )和空气三部分组成。
A.
昆虫
B.
C.
杂质
【单选题】土一般由土颗粒固相、液相和 三部分组成。
A.
大相
B.
小相
C.
空气相
D.
气相
【简答题】土一般由(    )、(     )和(      )三部分组成。A. 土颗粒(固相)、水(液相)、空气(气相)
【单选题】环境变量PATH中含有多个路径时,路径和路径之间可以用哪项来隔开?
A.
,
B.
;
C.
|
D.
空格
【单选题】环境变量PATH中含有多个路径时,路径和路径之间可以用哪项来隔开?
A.
;
B.
C.
*
D.
|
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