科目:初中英語 來源: 題型:閱讀表達
Name and Material of The Traffic Light | Being Invented Date and Place | Inventor |
The first traffic lights looked like railway signals with red and green gas lamps for night use. | on December 10,1868, in London | J.P.Knight |
The modern electric traffic lights were red-green electric traffic lights. | in 1912, in Salt Lake City | policeman called Lester Wire |
A traffic signal system had two colors,red and green,and a buzzer(報警器). | on August 5,1914, an American Traffic Signal Company | James Hoge |
The first four-way,three-color traffic light | In 9120,in Detroit, Michigan | a police officer called William Potts |
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科目:初中英語 來源: 題型:閱讀理解
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科目:初中英語 來源: 題型:選擇題
A. | take | B. | taking | C. | took | D. | taken |
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科目:初中英語 來源: 題型:句型轉換
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科目:初中英語 來源: 題型:選擇題
A. | be | B. | was | C. | has | D. | have |
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