We all know that it is Edison who ____________the electric light bulb.
invented
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举一反三
- Like Edison, who created the light bulb, I make new things. I’m a(n) __________.
- Which one is wrong about Thomas Edison?( ) A: He was educated in school. B: His first job is telegraph operator. C: He had many patents. D: He invented electric light bulb.
- Thomas Edison was responsible for many _____in addition to the light bulb. A: inventions B: imaginations C: instructions D: innovations
- Thomas Edison was responsible for many ______ in addition to the light bulb. A: intentions B: imaginations C: instructions D: innovations
- How did Thomas Edison see his invention of the light bulb? A: As the result of a 2000-step process. B: As the result of too many failures. C: As definitely worthy of a news report. D: As nearly exhausting all his patience and energy.
内容
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“This light is too ________ for me to read by. Don’t we have a brighter bulb some where”; said the elderly man.
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we all know the dangers of
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It was well known that Thomas Edison _____ the electric lamp.
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As we all know, that we Australia is rich in natural ____
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4-3。What is the working principle for LED？（ ） A: convert electric to light B: convert light to electric C: convert electric to heat