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This past month saw one of the most devastating storms in history brings death and destruction on the Philippines. The number of lives lost is still being calculated, but it is already sitting above five thousand. In the flurryof news about the storm and its after-math, the cries of “I told you so” from environmentalists rang out loud and clear. These scientists were especially vocal during the United Nations Climate Change Conference, which just wrapped up in Warsaw, Poland. The timing of the conference and Typhoon Haiyan was an eerie coincidence, but perhaps the concurrence offered a wakeup call for all. Christiana Figures, Executive Secretary of the UN Framework Convention on Climate Change (UNFCCC) said, “We are witnessing ever more frequent extreme weather events, and the poor and vulnerable are already paying the price.” Scientists claim that storms like Typhoon Haiyan are an inevitable result of the effect greenhouse gases are having on our environment. Environmental analysts claim that rising temperatures around the globe and changing weather patterns are all part of the same problem. This isn’t breaking news. We’ve heard the warnings for years. The UN has been hosting the Climate Change Conference since1995.But the changes that need to be made are huge. Added to this, the developed nations and developing countries have competing interests that are difficult to settle. The issue of who takes responsibility becomes difficult to resolve. We may feel far away from Poland and resolving conflicts between countries, but we mustn’t feel far away from the issue. When we watch neighboring countries suffer in severe weather, when we hear reports of increasing global temperatures, when we walk outside and find it difficult to breathe the Shanghai air, we know we have a very real problem. So what are we going to do about it? Are we making every-day choices that can have a positive impact? Are we reducing our carbon footprint? Are we choosing to walk, ride a bicycle or take public transportation instead of a car? Are we recycling? Are we turning off the lights and electronics whenever possible? The problem is complex, but saving our earth starts with each of us taking simple steps. 小题1:What is the most terrible typhoon in 2013? It is _________. A.Haiyan B.Bebinca C.Danas D.Cimaron 小题2:Warsaw isn’t in Poland,is it? A.Yes, it is B.No, it isn’t C.Yes, it isn’t D.No, it is 小题3:How many years have we heard the warnings? For nearly ______years. A.21 B.18 C.19 D.20 小题4:Which of the following is NOT FALSE? A.The environment is worse and worse and we have no ideas about it. B.The environment is worse and we needn’t do anything about it. C.Saving our environment is not so complex. D.The environment is a big problem and we must take simple steps
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【单选题】SINUMERIK802D 系统 指令的倒圆角编程格式 圆弧--直线 描述正确的是:
A.
G03 ( G02 ) X Y CR= RND= F G01X Y
B.
G03 ( G02 ) X Y CR= ,RND= F G01X Y
C.
G03 ( G02 ) X Y CR= CR= F G01X Y
D.
G03 ( G02 ) X Y R CR= RND= F X Y
【判断题】变压器瓦斯保护和差动保护的作用及保护范围的相同的。
A.
正确
B.
错误
【单选题】SINUMERIK802D 系统 指令的倒圆角编程格式 直线--圆弧 描述正确的是:
A.
G01X Y C R= F G03 ( G02 ) X Y RND=
B.
G01X Y , RND= F G03 ( G02 ) X Y C R=
C.
G01X Y RND = F G03 ( G02 ) X Y C R=
D.
G01X Y . RND = F G03 ( G02 ) X Y CR=
【简答题】何为自锁?何为互锁?
【单选题】在S7-200中,一共有()个定时器
A.
16
B.
100
C.
256
D.
500
【单选题】SINUMERIK802D 系统 指令的倒圆角编程格式 圆弧--圆弧 描述正确的是:
A.
G03(G02)X Y CR= .RND= F G03(G02) X Y C R= F
B.
G03 (G02) X Y ,RND= F X Y C R= F
C.
G03(G02)X Y CR= ,RND= F G03(G02)X Y C R= F
D.
G03(G02)X Y CR= RND= F X Y C R= F
【判断题】变压器的瓦斯保护与差动保护的范围与作用是相同的。( )
A.
正确
B.
错误
【简答题】如何实现自锁、互锁?在正反转控制电路中两只接触器为什么不能同时得电?会造成什么影响?
【单选题】在S7-200SMART中,一共有()个定时器
A.
16
B.
100
C.
256
D.
500
【多选题】运输生产计划在运输生产经营管理工作中的作用有()
A.
运输企业经营计划的重要组成部分
B.
满足市场对运输服务的需要
C.
编制企业经营目标的依据
D.
是确定后勤供应的基础
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