单选题According to the passage, if a city has several business districts _____.A people won’t have to drive to work every dayB there have to be more roads and parking spacesC companies would be located in between the districtsD there would be no need to buil

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
In this passage, the following advantages of casual office wear are mentioned EXCEPT． ( )

A. saving worker's money
B. making workers more attractive
C. improving worker's feeling
D. making workers happier

For the first time on record,the number of advertising-specific jobs in the U.S.is declining in the middle of an economic expansion,according to government data.What's going on?It's certainly not a case of fewer advertisements.The typical American has gone from seeing about 500 ads each day in the 1970s to about 5,000 today,according to a common industry statistic.That is one corporate message for roughly every 10 seconds of waking life.Instead,the mysterious decline can be explained by two developments.First,there are Facebook and Google.They are the largest advertising companies in the world-and,quite likely,the largest in the history of the world.Last year,90 percent of the growth of the digital-advertising business went to just these two firms.Facebook and Google are so profitable because they use their enormous scale and data to deliver targeted advertising at a low cost.This has forced the world's large advertising firms to preserve their profitability through a series of mergers,accompanied by jobs cut.s in the name of efficiency.The emergence of an advertising duopoly has coincided with the rise of"programmatic advertising,"a term that essentially means"companies using algorithms to buy and place ads in those little boxes all over the internet."As any Macl Men fan might intuit,advertising has long been a relationship-driven business,in which multimillion-dollar contracts are hammered out over one-on-one meetings,countless lunches,and even more-countless drinks.With programmatic technology,however,companies can buy access to specific audiences across several publishing platforms at once,bypassing the work of building relationships with each one.That process produces more ads and requires fewer people-or,at least,fewer traditional advertising jobs and more technical jobs.Second,there is the merging of the advertising and entertainment businesses.As smartphone screens have edged out TV as the most important real estate for media,companies have invested more in"branded content"-corporate-sponsored media,such as an article or video,that resembles traditional entertainment more than it does traditional advertising.Some of the most prominent names in journalism,such as The New York Times,BuzzFeed,Vice,and The Atlantic,are owned by companies that have launched their own branded-content shops,which operate as stand-alone divisions.As many media companies have tried to become more like advertising companies,the value of the average"creative-account win,"an ad-industry term for a new contract,has declined,falling by about 40 percent between 2016 and 2017.So there are two major themes of the decline of advertising jobs,one that has to do with the companies that now create them and one that has to do with the way brands prefer to market themselves nowadays.In short,the future of the advertising business is being moved to technology companies managing ad networks and media companies making branded content-that is,away from the ad agencies.
Which of the following would be the best title for the text?

A.Where Did All the Advertising Jobs Go?
B.How Do Facebook and Google Produce Ads?
C.Why is the Number of Ads Declining?
D.What is the Future of the Advertising Business?

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
According to this passage, which of the following is FALSE? ( )

A. Many workers don't like a conservative dress code．
B. Comfortable clothes make workers more productive．
C. A casual clothes code is welcomed by young workers．
D. All the employers in the U．S． are for casual office wear．

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
According to this passage, which of the following is TRUE?

A. Company workers started to dress down about twenty years ago．
B. Dress-down has become an everyday phenomenon since the early 1990s．
C. "Dress-down Friday" was first given as a favor from employers．
D. Many workers want to wear casual clothes to impress people．