题目内容

安全涉及到每个人的学习及日常生活,包括:人身安全、财产安全、防火安全、生活安全、交通安全等等。

A. 正确
B. 错误

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1930年6月1日,由时任绍兴县教育局督学田锡安发起创办并任社长,旨在“引导儿童关心时事,热爱祖国”的()在绍兴面世。该报是中国第一份儿童报纸。

A. 《儿童时报》
B. 《少儿时报》
C. 《中华儿童报》

对于我国所用的三相市电,下面描述正确的是()。

A. 因每一相都是220V,所以两相之间的电压为0V
B. 因每一相的电压为220V,所以两相之间的电压为440V
C. 两相之间的相位差为120°
D. 两相之间的电压为110V

《中华人民共和国安全生产法》中新建、改建、扩建工程项目与安全设施的关系是什么?

You are the network administrator of an enterprise company that just deployed a global IP telephony environment. In order to guarantee good voice quality, you asked your provider to implement QoS on the CE routers of your MPLS network. On your LAN, you have also deployed QoS. Users, however, keep complaining about bad voice quality, and the provider does not see matches on the DSCP values that you have asked him to match upon. What is most likely the problem?()

A. The phones are not sending traffic with the correct DSCP value.
B. The Cisco CallManager is not marking the traffic correctly.
C. This is most likely a bug on the CE routers.
D. Your LAN QoS is incorrectly configured.

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