2022统计学和统计法基础知识题库第六章时间序列分析题库全真每日一练(07月24日)

1. [单选题]水磨石楼地面施工应注意：

A. B

2. [单选题]行内严禁使用盗版软件和破解工具，不能（），严禁安装各种游戏软件。

A. 私自安装应用软件
B. 更改口令
C. 更新软件

3. [单选题]For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.

A. B

4. [单选题]螺纹直径为（4～8）㎜的螺栓和螺母上的冲点应不超过（）点。

A. 1
B. 3
C. 2
D. 5

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