题目内容
（请给出正确答案）
Replace the dots with a word to make three new words. (…)DOOR/FLOW/GROW
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更多“Replace the dots with a word to make three new words. （…)DOOR/FLOW/GROW”相关的问题
According to the passage, it is possible that e-paper
A．will soon be commercialized and within reach.
B．will be printed on paper with E-Ink.
C．will replace the traditional paper.
D．will be made of plastic layer instead of glass.
LED Lighting
1 An accidental discovery announced recently has taken LED lighting to a new level, suggesting it could soon offer a cheaper, longer-lasting alternative to the traditional light bulb. The breakthrough adds to a growing trend that is likely to eventually make Thomas Edison&39;s bright invention obsolete. LEDs are already used in traffic lights, flashlights, and architectural lighting. They are flexible and operate less expensively than traditional lighting.
2 Michael Bowers, a graduate student2 at Vanderbilt University, was just trying to make really small quantum dots, which are crystals generally only a few nanometers big. Quantum dots contain anywhere from 100 to 1,000 electrons. They&39;re easily excited bundles of energy, and the smaller they are, the more excited they get. Each dot in Bowers&39; particular batch was exceptionally small, containing only 33 or 34 pairs of atoms.
3 When you shine a light on quantum dots or apply electricity to them, they react by producing their own light, normally a bright, vibrant color. But when Bowers shined a laser on his batch of dots, something unexpected happened. He was surprised when a white glow covered the table. The quantum dots were supposed to emit blue light, but instead they were giving off a beautiful white glow.
4 Then Bowers and another student got the idea to stir the dots into polyurethane and coat a blue LED light bulb with the mix. The lumpy bulb wasn&39;t pretty, but it produced white light similar to a regular light bulb.
5 LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours. The Department of Energy estimates LED lighting could reduce U. S. energy consumption for lighting by 29 percent by 2025. LEDs don&39;t emit heat, so they&39;re also more energy efficient. And they&39;re much harder to break.
6 Quantum dot mixtures could be painted on just about anything and electrically excited to produce a rainbow of colors, including white. The main light source of the future will almost surely not be a bulb. It might be a table, a wall, or even a fork.
Paragraph 1 ______
A LED Lighting Is Not MatureB LED Lighting Will Replace Traditional LightingC Almost Everything Could Be the Main Light Source in the FutureD LED Lighting Has Many AdvantagesE Bowers Made an Unexpected DiscoveryF LED Light Bulbs Look Lumpy
Paragraph 3 ______
A LED Lighting Is Not MatureB LED Lighting Will Replace Traditional LightingC Almost Everything Could Be the Main Light Source in the FutureD LED Lighting Has Many AdvantagesE Bowers Made an Unexpected DiscoveryF LED Light Bulbs Look Lumpy
Paragraph 5 ______
A LED Lighting Is Not MatureB LED Lighting Will Replace Traditional LightingC Almost Everything Could Be the Main Light Source in the FutureD LED Lighting Has Many AdvantagesE Bowers Made an Unexpected DiscoveryF LED Light Bulbs Look Lumpy
Paragraph 6 ______
A LED Lighting Is Not MatureB LED Lighting Will Replace Traditional LightingC Almost Everything Could Be the Main Light Source in the FutureD LED Lighting Has Many AdvantagesE Bowers Made an Unexpected DiscoveryF LED Light Bulbs Look Lumpy
Unlike traditional lighting, LEDs do not give out heat so ______.
A traditional lighting is less durable and dearerB a laser excited the quantum dotsC America adopted LEDsD graduate students work hardE quantum dot mixtures are magicF it is more efficient
Edison&39;s bright invention is likely to be outdated because ______.
A traditional lighting is less durable and dearerB a laser excited the quantum dotsC America adopted LEDsD graduate students work hardE quantum dot mixtures are magicF it is more efficient
Something unexpected happened during Bower&39;s experiment when ______.
A traditional lighting is less durable and dearerB a laser excited the quantum dotsC America adopted LEDsD graduate students work hardE quantum dot mixtures are magicF it is more efficient
Over one quarter of energy consumption for lighting could be saved by 2025 if ______.
A traditional lighting is less durable and dearerB a laser excited the quantum dotsC America adopted LEDsD graduate students work hardE quantum dot mixtures are magicF it is more efficient
请帮忙给出每个问题的正确答案和分析，谢谢！
SECTION B ENGLISH TO CHINESE
Directions: Translate the following text into Chinese.
Social Set
Some of my older, more sophisticated friends find television much more of a social experience than, say, going to a Broadway play or to movies. While no talking is allowed in the theater, social television encourages interaction between audience and set, and among the audience. The viewers can guess at the dialogue and plot of dramas, editorialize on the news, predict the Oscar winners, or single out from the semifinalists the next Miss America. It can be much more fun to talk back to the set than to sit silently in a darkened theater (the product on the screen being equal, naturally).
I am not claiming that social television has brought back the wit and brilliance of the salon to American homes. Social television can't replace real conversation or teter-a-tetes or a good book or a blazing fireplace or solitary thought.
Television has proved, on the whole, to be a good guest in the house, especially when it is not invited to perform. too often. Most of our work and much of our play forces us, as individuals, into specialized rules. Even our reading materials have become like private languages-father is down at the Wall Street Journal or looking into his Fortune; mother can be found or may be lost, in The Women's Room; the college kids are like a Rolling Stone.
Television can be a national tongue. At its best, television can provide a common basis for experience, maybe a few laughs, some information and insight, perhaps the chance to engage one's intelligence and imagination. In these days of runaway prices, inflated mediocrities, and deflated hopes in our public lives, that's not a bad record. Television has a standing invitation to come to my place.
A、DOTS，预防HIV
B、DOTS，预防HIV，检测HIV
C、DOTS，预防机会感染，结核病治疗期间，复方新诺明预防性治疗
D、健康教育，促进早期诊治，定期监测活动结核病
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