【单选题】常用()来描述涡喷、涡扇发动机的经济性。
【简答题】_____ deeds are always encouraged in all cultures. (hero)
【单选题】As for the relationship between man and animals,the author holds that______
A.
man is a kind of animals
B.
man is superior to animals
C.
man is the same as animals
D.
man and animals are essentially different from each other
【简答题】20世纪70年代中后期以来,对国际形势做出了哪些新的科学判断?
【简答题】电控发动机转速传感器断线,发动机一般会立即熄火。____
【单选题】( )消费者往往将产品视为体现自己身份或地位的一种方式,对产品本身的样式、技术性介绍毫无兴趣,更愿意接受以图形、影像和商业宣传形式出现的产品展示活动。
【单选题】What bad deeds would he not do! The posible meaning of the sentence is_____.
A.
He has never done bad deeds.
B.
He has done many bad deeds.
C.
He will do good deeds.
D.
He won't do any bad deeds.