【单选题】
在OSI参考模型中能实现路由选择、拥塞控制与互联功能的层是___。
A. 传输层
B. 应用层
C. 网络层
D. 物理层
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答案
C
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在下面对OSI参考模型的数据链路层的功能特性描述中，哪一项是不正确的？___
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【单选题】
下面属于TCP/IP协议族中网络互联层协议的是___。
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【单选题】
Having practiced so many times, I feel very ___ of my ability to deliver the presentation successfully.
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The university decided to increase the ___ of the lecture hall, which has only 200 seats.
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Smart phones – with cameras and color screens – can ___ images and data using wireless network technology.
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Don’t take someone you get to know from the Internet to your house no matter how ___ he sounds.
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This kind of exercise will ___ your creativity, renew your energy, and unlock your potential.
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There is no greater importance ___ cultivating independence in children.
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He has made it very clear ___ we should observe the new rules.
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It was when I read his letter ___ I realized he had given me huge help.
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Don’t worry too much, Jane. Your son ___ home already. Let’s go back and check it out.
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___ they have written about the behaviors of animals is hardly anything new.
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Showing some sense of humor can be a(n) ___ way to deal with some stressful situations.
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He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
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A. would like
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