在船舶稳性中，动平衡是指（）的平衡。 A.能量 B.力 C.力矩 D.力以及力矩
题型：单项选择题
问题：
在船舶稳性中，动平衡是指（）的平衡。
A.能量
B.力
C.力矩
D.力以及力矩
题型：单项选择题
| 六选五 | |
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| 1. _____ May 19,1991 was a red letter day for the people of Nanxi Town,Jinzhai County,in the Dabie Mountain area of Anhui Province.On that day the town people cut the ribbon at the inauguration (落成典礼) of a primary school,the first in China set up with money raised in a national campaign for educational development.They were happy to see their children,who had been deprived (剥夺) of an education because of poverty,entering school. 2. _____ The Dabie Mountain range lies at the juncture of Hubei,Henan and Anhui provinces.Jinzhai County, located in the highest section of the mountain range,has within its boundaries more than 100 peaks each exceeding 1,000 meters in height.Due to the unfavorable natural conditions,some people in the county are unable to feed and clothe themselves adequately no matter how hard they work throughout the year.About 1,500 children have dropped out of school because their parents are unable to pay the fees for them. 3. _____ Huangpin,a povertystricken village situated in the a cold area 750 metres above sea level,is typical of the county.Among the villages are 224 children between the ages of 7 and 15.There are 80 children who are unable to go to school because of economic problems.Some pupils have to cut firewood after school to support themselves.Some leave school to look after cattle and pigs because they cannot afford the 20 yuan necessary for buying books. 4. _____ The county's leaders have long realized that it is very difficult for county in which 36% of the people are illiterate (文盲) to free  itself of poverty.In order to change this situation,they have spent 1/3 of the county's tax income on education "I'm daydaytest Placeholder" for several years' running.In order to enroll (招收) more children,teachers from some schools have climbed hills to encourage people to send their children to school.Some teachers have even paid their students' fees from their own pockets,although their salaries are very low. 5. _____ According to statistics (统计数据) in China,more than one million schoolage children are unable to go to school because of economic problems.In October 1989,the China Foundation for the Development of Children and Youth appealed to the country and the world to raise money for the education of children in povertystricken areas.Since children are the future of the country,this project is called "The Hope Project"． |