更多"Many are aware of the tremendous wa"的相关试题:
[单项选择]Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities to conserve that energy. For example, everyone knows that lights should be switched off when no one is in an office. Similarly, when employees are not using a meeting room, there is no need to regulate temperature.
Fortunately, one need not rely on human intervention to conserve energy. With the help of smart sensing and network technology, energy conservation processes such as turning off lights and adjusting temperature can be readily automated. Ultimately, this technology will enable consumers and plant managers to better identify wasteful energy use and institute procedures that lead to smarter and more efficient homes, buildings and industrial plants.
Until now, wires and cables for power and connectivity have limited the widespread adoption of sensor (传感器) networks by making them difficult and expensive to install and maintain. Battery-powered
A. have to be replaced from time to time
B. contain metals that pollute the environment
C. require automatic recharging
D. are difficult and costly to maintain
[填空题]The difficulty with electronic waste and many other products is that ______ the products and ______ the component materials is a very difficult and expensive process.
[单项选择] I first became aware of the unemployment problem in 1928. At that time I had just come back from Burma, where unemployment was only a word, and I had gone to Burma when I was still a boy and the post-war boom was not quite over. When I first saw unemployed men at close quarters, the thing that horrified and amazed me was to find that many of them were ashamed of being unemployed. I was very ignorant, but not so ignorant as to imagine that when the loss of foreign markets pushes two million men out of work, those two million are to blame. But at that time nobody cared to admit that unemployment was inevitable, because this meant admitting that it would probably continue. The middle classes were still talking about "lazy idle loafers on the dole" and saying that "these men could all find work if they wanted to," and naturally these opinions affected the working class themselves. I remember the shock of astonishment it gave me, when I first met with tramps and beggars, to find that a f
A. he had spent his childhood in Burma
B. people in Burma hardly talked about unemployment
C. the English economy collapsed after he had gone abroad
D. England had been enjoying economic prosperity while he was in Burma
[填空题]In chemical works there are many waste materials, most of which ______ (在物定情况下可以转化为有用的东西)
[单项选择]Passage Three
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities to conserve that energy. For example, everyone knows that lights should be switched off when no one is in an office. Similarly, when employees are not using a meeting room, there is no need to regulate temperature.
Fortunately, one need not rely on human intervention to conserve energy. With the help of smart sensing and network technology, energy conservation processes such as turning off lights and adjusting temperature can be readily automated. Ultimately, this technology will enable consumers and plant managers to better identify wasteful energy use and institute procedures that lead to smarter and more efficient homes, buildings and industrial plants.
Until now, wires and cables for power and connectivity have limited the widespread adoption of sensor (传感器) networks by making them difficult and expensive to install and mainta
A. the reduction of great energy waste in the environment
B. the grasping of straightforward opportunities available
C. acts like turning off lights when no one is in the room
D. the adoption of smart sensing and network technology
