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网络管理实体完成任务有

答案

参考答案：

（1）收集有关通信和网络活动方面的统计信息。

（2）对本地设备进行测试，记录其状态信息。

（3）在本地存储有关信息。

（4）响应网络控制中心的请求，传送统计信息或设备状态信息。

（5）根据网络控制中心的指令，设置或改变设备参数。

单项选择题

用抽样某一特定煤体工具的接收者作为受试者，请他们反复观看或该煤体，时间不限，然后说出认识煤体上众多个广告中的哪一个，最后根据识别的结果给予每一则广告不同的可读性评分。这种测试方法叫做（）。

A.直接评分

B.回忆测试

C.识别测试

D.组合测试
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单项选择题

One of the most convenient and cheapest ways to see America is by riding a Greyhound bus. This interstate bus system connects all major cities in the United States, (52) people with frequent and convenient service. The bus system even has an international service (53) makes connection with cities in Canada and Mexico.

Its network even extends to some of the smaller towns and out-of-the-way communities (54) the great interior of the country. Traveling by bus may (55) longer than flying by plane, but the terminals are located in the center of most cities and there is (56) to the downtown area. These buses are comfortable and air-conditioned. They are all equipped with toilets in the rear to (57) the convenience of the passengers, but there are some very severe (58) of conduct which are strictly enforced. On all buses (59) is forbidden and the consumption of alcoholic drinks is not allowed.

(60) bus travel may not be suited to everyone’s taste, it affords budget travelers the (61) to see America in comfort and safety and at a leisurely unhurried pace.

61().

A.money 

B.chance 

C.time 

D.occasion
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