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问题 单项选择题

科学发展观指的是（）。

A．科学发展，高效发展，健康发展

B．以科学为本，科学、平稳、顺利发展

C．以人为本，全面、协调、可持续发展

D．以人为本，科学、高教、健康发展

答案

参考答案：C

单项选择题

In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high-speed networks, this approach often works poorly, because in the (64) between sending the notification and notification arriving at the source, thousands of additional (65) may arrive. In ATM network , a major tool for pre- venting (66) is (67) control. When a host wants a new virtual (68) , it must describe the traffic to be offered and the service expected.

64（）

A．interval

B．time

C．slot

D．delay
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单项选择题

在一个图像上建立多个链接，可以采用（）。

A．文字链接方法

B．将图像链接和文字链接结合使用的方法

C．热区链接方法

D．图像链接方法
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