科目: 来源: 题型:阅读理解
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| A. | read;reading | B. | read;am not reading | ||
| C. | reading;am reading | D. | reading; am not reading |
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科目: 来源: 题型:选择题
| A. | a;/ | B. | a; the | C. | /; the | D. | the; an |
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| A. | How long; borrow | B. | How long; keep | ||
| C. | .when; keep | D. | When; lend |
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科目: 来源: 题型:选择题
| A. | How; interesting | B. | How; boring | ||
| C. | What; boring | D. | What; interesting |
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科目: 来源: 题型:填空题
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科目: 来源: 题型:阅读表达
| 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(报警器). | 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: 来源: 题型:填空题
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