For a successful conversation, one needs not have a good understanding of context.（)

A./etc/sysconfig

B./etc/con

C.modules

D./etc/lilo.conf

E./boot/System.map

His business was very successful, but it was at the ______ of his family life.

A) consumption B) credit C) exhaustion D) expense

His business, was very successful, but it was at the of his family life.

A) exhaustion B) consumption C) credit D) expense

A.looked down upon as

B.looked upon as

C.thrust upon as

D.become interested in

ssful value chain management？

为了确定避孕套的使用在降低有性行为的高中生之间传播性疾病的有效性，一个简单的模型为

其中， inf rate表示有性行为的学生中感染性病的比例， con use表示声称合理地使用了避孕套的男孩子比例，avg inc表示平均家庭收入， 而city则是一个表示所在学校是否处在城里的虚拟变量; 这个模型是在学校这个层次上做的。

(i)在因果性和其他条件不变的模式下解释上述方程，β₁的符号应该是什么？

(ii)为什么inf rate和com se可能是联合决定的？

(iii)如果避孕套使用率随着性病感染率的上升而提高，所以在下式中

(iv)令aris表示一个二值变量，若学校有分发避孕套项目则取值1.解释这如何用于通过Ⅳ估计β₁(和其他系数)。我们必须在每个方程中对concis做怎样的假定？

The key to any successful garage sale （家庭旧物出售)is to get the word out.The best me

ans of advertising your sale is to place an ad in the local newspaper.If you have a city and neighborhood paper, make sure you advertise in both.The ad should be large enough that it stands out.It should also include information on where the sale is located with directions, the "hot" items you're selling and the time the sale will start and end.An ad should be placed at least two days before the sale and run until the day of your event.That way people can plan their route (路线)to the sale in advance.

Sig ns are another great way to inform. your community.Post them in places where people gather, such as stores and community centers.Some businesses have a central bulletin board (布告栏), which is the best place to advertise.Other places to post are at the loc al college or university campus.This is especially helpful if your sale is happening in August or early September when students have returned to school and are looking for cheap finds.

Post signs around your neighborhood.You should also place both ads a nd direction signs, especially if you're located on a side street without a major presence.Signs will attract and direct people.Just make sure you print in bold letters and use large direction signs so people can read the information from the front seat of their car.

1.The best way of getting out the news of your garage sale is to ().

A.publish the news online

B.visit people door-to-door

C.advertise in the local newspaper

D.make phone calls to your neighbors

2.You should place an ad at least two days before the sale so that people can ().

A.get enough cash for the sale

B.compare prices of the items

C.select the items they will buy

D.decide on their route in advance

3.Why should signs be po sted in a community center？()

A.Schools are nearby

B.There are many stores

C.Students often meet there

D.More people gather there

4.What advice is given for printing the signs according to the last paragraph？()

A.Colored signs are preferred

B.Bold letters should be used

C.Large pictures should be included

D.Phone numbers should be provided

5.The best title for the passage might be ().

A.Advertising Garage Sales

B.Advanta ges of Garage Sales

C.Importance of Garage Sales

D.Printing Ads for Garage Sales

截取一段明文如下:

The Mutual Information Analysis (MIA) is a generic side channel distingui she that has been introduced at CHES 2008. This paper brings three contributions with respect to its applicability to practice. First, we emphasize that the MIA principle can be seen as a toolbox in which different (more or less effective) statistical methods can be plugged in. Doing this, we introduce interesting altematives to the original proposal. Second, we discuss the contexts in which the MIA can lead to successful key recoveries with lower data complexity than classical attacks such as, eg. using Pearson's correlation coefficient. We show that such contexts exist in practically meaningful situations and analyze them statistically. Finally, we study the connections and differences between the MIA and a framework for the analysis of side- channel key recovery published at Eurocrypt 2009. We show that the MIA can be used to compare two leaking devices only if the discrete models used by an adversary to mount an attack perfectly correspond to the physical leakages.

忽略文中的数字和符号，试用(1.9)仿射密码加密。然后对密文进行破密。

n feel theneed to appear competent in all 26,while women worry only about the skills in which they'veinvested _ 27_.Ask a man and a woman to go diving for the first time，and the woman is likely tojump in，while the man is likely to say he's not feeling too well.

Ironically，it is often success that leads people to flirt with failure.Praise won for _ 28_a skillsuddenly puts one in the position of having everything to lose.Rather than putting their reputation on theline again，many successful people develop a handicap—drinking，_ 29_，depression—that allowsthem to keep their status no matter what the future brings. An advertising executive 30_ fordepression shortly after winning an award put it this way:“Without my depression，I'd be a failure now;with it，I'm a success 'on hold.’”

In fact，the people most likely to become chronic excuse makers are those 31 _ with success.Such people are so afraid of being 32a failure at anything that they constantly develop onehandicap or another in order to explain away failure.

Though self-handicapping can be an effective way of coping with performance anxiety now and then,in the end，researchers say，it will lead to_ 33_. In the long run，excuse makers fail to live up to theirtrue_ 34_and lose the status they care so much about. And despite their protests to the _35they have only themsclves to blame.

A) contrary F) labeled K) potential

B) fatigue G) legacies L) rcalms

C) heavily H) mastering M) reciprocal

D) heaving l) momentum N) ruin

E) hospitalized J) obsessed o) viciously

s it mean？ What is the importance of ethics in business？

Business ethics is not about personality, though a good personality is valuable. Ethics is the primary element and prerequisite for successful business. No matter what you do, you should think of business as a matter of integrity. Nowadays, the slip in ethics and the absence of social responsibility, especially integrity, have led to a crisis in business, seriously influencing social development.

Events resulting from a loss of trust are being seen now and then and they affect the society in many unfortunate ways. Most people know the importance of business ethics, but still some people don't honor them. We often hear media reports on problems in business, such as adding harmful materials to products. These behaviors cause much damage to consumers, who spend money but do not get quality commodities, especially when these commodities do great harm to their health. It is difficult for people to forget the case in which some children consumed unsafe milk powder produced by a few immoral businesses, and their health suffered serious damage as a result. People can't bear this kind of behavior. and the businesses responsible must be closed down and the related personal be published.

1.What is the primary component for a prosperous business？

A.Good management

B.Business ethics

C.Reliable credit status

2.What is the influence of losing integrity？

A.Hinder social development

B.Worsen the company's reputation

C.Reduce people's trust between each other

3.What is people's attitude towards business ethics？

A.All people pay attention to business ethics

B.Most people attach importance to it and follow it

C.Lots of people know its importance but still some don't honor it

4.Which of the following items is NOT mentioned in this passage？

A.The absence of ethics has led to a crisis in business world

B.Manufacturers' immoral behaviors do little harm to consumers

C.Media is important for people to know more about commodities

5.What is the author's attitude toward immoral behaviors in business？

A.Critical

B.Affirmative

C.Indifferent