问题 单项选择题

西方航空公司由北京至西安的全额票价一年多来保持不变,但是,目前西方航空公司由北京至西安的机票90%打折出售,只有10%全额出售;而在一年前则是一半打折出售,一半全额出售。因此,目前西方航空公司由北京至西安的平均票价比一年前要低。
以下列哪项最可能是上述论证所假设的?()

A.目前和一年前一样,西方航空公司由北京至西安的机票,打折的和全额的,有基本相同的售出率

B.目前和一年前一样,西方航空公司由北京至西安的打折机票售出率,不低于全额机票

C.目前西方航空公司由北京至西安的打折机票的票价和一年前基本相同

D.目前西方航空公司由北京至西安航线的服务水平比一年前下降

答案

参考答案:C

解析:

C项是必须假设的。否则,完全可能出现这样的情况,例如,目前机票的打折率高于九折,一年前打折率低于五折,即目前打折机票的票价远高于一年前。这样,题干的结论显然就不成立。

选择题
阅读理解

阅读理解

     It was the summer of 1965. Deluca, then 17, visited Peter Buck, a family friend. Buck asked Deluca

about his plan for the future. "I'm going to college, but I need a way to pay for it," Deluca recalls saying.

"Buck said, 'you should open a sandwich shop.'"

     That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After

doing some research, Buck wrote a check for $1,000. Deluca rented a storefront (店面) in Connecticut,

and when they couldn't cover their startup costs, Buck kicked in another $1,000.

     But business didn't go smoothly as they expected. Deluca says, "After six months, we were doing

poorly, but we didn't know how badly, because we didn't have any financial controls." All he and Buck

knew was that their sales were lower than their costs.

     Deluca was managing the store and to the University of Bridgeport at the same time. Buck was

working at his day job as a nuclear physicist in New York. They'd meet Monday evenings and brainstorm

ideas for keeping the business running. "We convinced ourselves to open a second store. We figured we

could tell the public, 'We are so successful; we are opening a second store.'" And they did-in the spring

of 1966. Still, it was a lot of learning by trial and error.

     But the partners' learnasyougo approach turned out to be their greatest strength. Every Friday,

Deluca would drive around and handdeliver the checks to pay their supplies. "It probably took me two

and a half hours and it wasn't necessary but as a result, the suppliers got to know me very well, and the

personal relationships established really helped out," Deluca says.

     And having a goal was also important. "There are so many problems that can get you down. You just

have to keep working toward your goal," Deluca adds.

     Deluca ended up founding Subways Sandwich, the multimilliondollar restaurant chain.

1. Deluca opened the first sandwich shop in order to ________.

A. support his family

B. pay for his college education

C. help his partner expand business

D. do some research

2. Which of the following is true of Buck?

A. He put money into the sandwich business.

B. He was a professor of business administration.

C. He was studying at the University of Bridgeport.

D. He rented a storefront for Deluca.

3. What can we learn about their first shop?

A. It stood at an unfavorable place.

B. It lowered the prices to poor management.

C. It made no profits due to poor management.

D. It lacked control over the quality of sandwich.

4. They decided to open a second store because they ________.

A. had enough money to do it

B. had succeeded in their business

C. wished to meet the increasing demand of customers

D. wanted to make believe(假装)that they were successful

5. What contributes most to their success according to the author?

A. Learning by trial and error.

B. Making friends with supplies.

C. Finding a good partner.

D. Opening chain stores.