推理是学习化学的一种重要方法,不合理的推理会得出错误的结论.以下推理正确的是 [

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问题:

推理是学习化学的一种重要方法,不合理的推理会得出错误的结论.以下推理正确的是 [ ]

A.碱溶液的pH都大于7,pH大于7的溶液不一定是碱溶液

B.溶液是均一、稳定的混合物,均一、稳定的物质一定是溶液

C.原子可以构成物质,物质一定是由原子构成

D.有些金属和稀硫酸反应放出气体,与稀硫酸反应放出气体的物质一定是金属

考点:溶液的酸碱性与pH值溶液的定义、组成及特征构成物质的微粒(分子、原子、离子)金属的化学性质酸的性质
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以下关于网上特约商户业务的做法正确的有()。

A、注册行负责保管网上特约商户的全套申请资料、申请表、协议复印件各一份;

B、受理行保管申请表、协议原件各一份;

C、收单行保管申请表、协议复印件各一份;

D、商户领取申请表和协议原件各一份。

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可能发生了下列哪种情况

A.气胸
B.哮喘持续状态
C.过敏性肺炎
D.急性左心衰
E.纵隔气肿

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社会审计报告的收件人是()。

A、审计业务的委托人

B、派出审计组的事务所

C、被审计单位

D、有关政府部门

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     It was the summer of 1965. DeLuca, then 17, visited Peter Buck, a family friend. Buck asked DeLuca about his plans 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 sndwich 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 ﹩1000. DeLuca rented a storefront(店面 ) in Connecticut, and when they couldn't cover their start-up costs, Buck kicked in another ﹩1000.      

     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 going 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' learn-as-you-go approach turned out to be their greatest strength. Every Friday, DeLuca would drive around and hand-deliver the checks to pay their suppliers. “'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 Subway Sandwich, the multimillion-dollar 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 promote sales.      

C. It made no profits due to poor management.      

D. It lacked control over the quality of sandwiches.

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 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 suppliers.      

C. Finding a good partner.      

D. Opening chain stores.

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述证券市场监管的目的和原则?

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