【简答题】A.Finns and Canadians are both not concerned with the life outside their continent. B.The two countries have some similar physical appearance. C.The two countries are both very cold and have a lot of ...
【简答题】发动机的压缩比越大,发动机所发出的功率就越高,故发动机的性能就越好吗?试说明原因。
【单选题】Americans and Canadians can understand each other ___ they don’t speak the same kind of English.
【单选题】20°C水的饱和蒸气压( )100°C水的饱和蒸气压
【单选题】The Canadians plan to __________ more food to southern Somalia.
【简答题】The Canadians plan to ____________________ more food to southern Somalia.
【单选题】_____ on-going division between English-speaking Canadians and French-speaking Canadians is _____ major concern of the country. [ ]
【判断题】因压缩比较高,发动机的热效率较大,故压缩比越高越好。