在计算机网络ISO/OSI开放系统互联七层参考模型中,最底层是 【9】 。

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问题:

在计算机网络ISO/OSI开放系统互联七层参考模型中,最底层是 【9】

考点:计算机等级考试数据库技术三级数据库技术笔试71
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Crossroads International

1. How does Crossroads work?

Crossroads is a resource network. We take goods Hong Kong doesn’t want and give them to people who badly need them. We collect those goods and give them out in the welfare(福利)center in Hong Kong, Mainland China, elsewhere in Asia, Eastern Europe and Africa.   1 

2. Who do we help?

  2 They are grass-root groups who have seen a need and tried to meet it. They can’t get the job done without back-up, though, so our task is to help them do their task. Our warehouse is full of goods, from computers to high chairs, clothing to books, stationery to medical provision, cupboards to dining sets. They send us a list of their needs and we try to match it with the resource we have in stock.

3.   3 

Crossroads itself also operates on a low budget. We do not buy the goods we send. They are donated.   4  Nobody in our organization receives a salary. Even our full-time staff work on a voluntary basis.

Those that donate goods and services:

●Factories     ●Manufacturers

●Hospitals     ●Hotels

●Educational Institutions  ●Householders

●Transport Companies   ●Offices

●Other Charities

  5 While we receive large quantities of goods and there is never a short supply of requests for them, we are always in need of hands to help sort and prepare them for shipping.

A.One resource that we are always in need of is people.

B.So Crossroads is just that: a Crossroads between need and resource.

C.What can I do?

D.The welfare agencies we help do not run on large budgets. E. How do we operate?

F. All volunteer work is done at our warehouse.

G.. Similarly, rather than raising funds for freight (货运), we ask transport companies to donate their services.

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杆塔拉线有哪些作用?

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When I was six, Dad brought home a dog one day, who was called "Brownie". My brothers and I all loved Brownie and did different things with her. One of us would walk her, another would feed her, then there were baths, playing catch and many other games. Brownie, in return, loved each and every one of us. One thing that most touched my heart was that she would go to whoever was sick and just be with them. We always felt better when she was around.

One day, as I was getting her food, she chewed up (咬破) one of Dad’ s shoes, which had to be thrown away in the end. I knew Dad would be mad and I had to let her know what she did was wrong. When I looked at her and said, "Bad girl," she looked down at the ground and then went and hid. I saw a tear in her eyes.

Brownie turned out to be more than just our family pet. She went everywhere with us. People would stop and ask if they could pet her. Of course she’ d let anyone pet her. She was just the most lovable dog. There were many times when we’ d be out walking and a small child would come over and pull on her hair. She never barked (咬) or tried to get away. Funny thing is she would smile. This frightened people because they thought ’she was showing her teeth. Far from the truth, she loved everyone.

Now many years have passed since Brownie died of old age. I still miss the days when she was with us.

Some people got frightened by Brownie when she()

 

A. smiled

B. barked

C. rushed to them

D. tried to be funny

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2017年1—7月,全国新设立外商投资企业17703家,同比增长12%;我国对外累计投资572亿美元,同比下降43%,非理性对外投资得到()。

A.有效遏制

B.集中扩展

C.延续规模

D.积极保护

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电制动失效时司机应如何处理?

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