问题
判断题
在相同的温度下，液体运动粘度与其密度之比称为动力粘度。
答案
参考答案：错
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在相同的温度下，液体运动粘度与其密度之比称为动力粘度。
参考答案：错
| 阅读理解。 | ||||||||
| The new term has started, No. 9 High School made a survey about the students' after-class activitis. Teachers asked 200 students what they usually did after school. Most of them said they did sports, some said that they did some reading, some joined the science club, and the others said they loved art. Now let's see how many students there are in different groups: | ||||||||
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| 1._____percent of the students like reading. A. 3 B. 17 C. 72 D. 15 2._____percent of the students are not so interested in art. A. 65 B. 15 C. 90 D. 100 3._____of the 200 students enjoy science. A. 15 B. 30 C. 60 D. 90 4. Students in the science club is_____percent less than that in the sports club. A. 54 B. 57 C. 67 D. 77 5.The chart shows that most of the students like_____. A. sports B.reading C.science D.art |