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一、选择题(本大题共有20小题,每小题四个选项中只有一个正确.1～15小题每题2分,16～20小题每题3分,共45分)1.鸡尾酒是由几种不同颜色的酒调配而成的,经调配后不同颜色的酒界限分明,这是由于不同颜色的酒有().A.不同质量B.不同体积C.不同温度D.不同密度2.三峡工程举世瞩目,其水
First, the multiple-choice questions (this title has a total of 20 small questions, each of the four questions in the small question is only one correct. 1 to 15 small questions each question 2 points, 16 to 20 small questions each question 3 points, a total of 45 points) 1. The cocktail is made up of several different colors of wine. After being blended, the different colors of the wine are clearly defined. This is because different colors of wine are available (). A. different qualities B. different volumes C. different temperatures D. different Density 2. Three Gorges Project attracts worldwide attention and its water