以下()情况可以使“辅助DNS服务器”主动向其指定的DNS服务器发出“区域复制”的请

题型:多项选择题

问题:

以下()情况可以使“辅助DNS服务器”主动向其指定的DNS服务器发出“区域复制”的请求。

A、指定的DNS服务器重启时

B、辅助DNS服务器重启时

C、辅助DNS服务器上“序列号”小于指定DNS服务器上的“序列号”时

D、在该DNS服务器上新建“标准辅助区域”时

E、在“辅助DNS服务器”上执行“从主DNS服务器上复制数据”命令时

考点:网络高级理论网络高级理论题库
题型:多项选择题

下列反应中,不属于取代反应的是 (   )

A.在催化剂存在条件下苯与液溴反应制溴苯

B.苯与浓硝酸、浓硫酸混合共热制取硝基苯

C.苯与浓硫酸共热制取苯磺酸   

D.在一定条件下苯与氢气反应制环己烷

题型:多项选择题

该患者最可能的诊断是

A.神经症

B.癔症

C.急性应激障碍

D.癫痫

E.脑肿瘤所致精神障碍

题型:多项选择题

D

Mayor Boris Johnson Monday outlined plans to make London “the cleanest, greenest city on Earth” by the 2012 Olympics and called for commitments from other world cities at a climate change conference. Leaders of the world’s 40 largest cities are meeting in Seoul this week for a summit on combating global warming –the third to be held since 2005.

“What we should do in Seoul is that we will stop the endless addiction of mankind to the internal combustion engine (内燃机),” said Johnson. He said at a press conference the world’s cities consume 75 percent of the world’s energy and produce 80 percent of the emissions which cause climate change. “The problem of our planet is an urban problem,” Johnson said.

He said the British capital wants to use the Olympics” to drive the greeting and the improvement of our city and noted that London is committed to reduce carbon dioxide emissions by 60 percent by 2025.

Johnson said the key measure was being taken to solve problems relating to housing and commercial buildings, which accounted for 70 percent of carbon dioxide emissions in London. This involved retrofitting (翻新) ---installing lagging – in large numbers of public buildings.

Johnson proclaimed himself a “passionate cyclist” and said he would push ahead with cycle superhighways around London.

London’s air quality problem, he said, was caused by vehicle emissions from 8,300 worn and used diesel (柴油buses, which could be replaced by low-carbon vehicle. In addition, there were also 32,000 taxis running on diesel fuel, which could be replaced by electric vehicle.

Johnson said there would be a few programs in the next few years to produce a “cleaner, greener” bus for the city. “The age of the diesel bus has got to be over in London.”

68. Which of the following statements is NOT TRUE according to this passage?

London’s air quality will be improved in the near future.

The used buses running on diesel will be replaced by electric vehicles.

London promises to reduce carbon dioxide emissions by 60 percent by 2025.

Something has been done to solve the problem of carbon dioxide emissions.

69What does the underlined word mean in the first paragraph?

A. resisting     B. supporting   C. agreeing        D. solving

70. The topic of the meeting in Seoul might be _____.

A. climate change                        B. global warming

C. London Olympics in 2012               D. green environment

71. If the passage was continually written, the following might be ______.

A. measures to end the age of the diesel bus

B. measures to reduce carbon dioxide emissions in London

C. measures to solve housing and commercial items

D. measures to replace the old and used vehicles

题型:多项选择题

堆石坝坝体材料分区主要有( )。

A.上游主堆石区

B.垫层区

C.过渡区

D.主堆石区

E.下游堆石区

题型:多项选择题

电缆上装设的标志牌,应注明的内容有()

A、线路编号

B、电缆编号

C、电缆规格

D、起讫地点

E、使用年限

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