描写燃气涡轮发动机进气道出口流场分布情况的参数是().
A.绝热指数
B.畸变指数
C.流量系数
D.速度系数
参考答案:B
任务型阅读。
Mary is my good friend. She is from Australia and she is ten years old now. She has a very cute and
clever dog and cat. The dog's name is Toby. He is four years old. He comes from Beijing. He likes to eat
bones (骨头) very much. He doesn't like to eat fish at all. But the cat called Mini likes eating fish very
much. They are friendly to each other and they often play together. Mary likes them very much. She is
glad to have these two pets (宠物).
1. Mare's dog is from _____.
2. Now Mary is at the age of _____.
3.The name of the cat is _____.
4. The dog and the cat are _____ to each other.
5. The cat likes to eat _____.
下图为世界汽车产业三次大转移示意图,读下图,完成1—3题。
1、第一次从欧洲转移到美国,导致美国汽车产量迅速增加的原因是[ ]
A、美国劳动力资源丰富,有利于发展汽车工业
B、汽车业大批量生产的规模经营为美国提供了契机
C、美国出现逆城市化,促进汽车工业发展
D、美国国土辽阔,有利于发展汽车工业
2、20世纪80年代,日本汽车产量稳居世界第一,其主要原因是[ ]
A、原料,燃料丰富
B、分布集中,工业投入多
C、水能丰富,动力投入多
D、重视科技投入
3、目前,美国,日本、德国等许多国家的汽车企业纷纷到中国投资建厂,主要是因为我国 [ ]
A、拥有大量廉价劳动力
B、工艺、技术先进
C、有着广阔的市场
D、城市化发展迅速