【单选题】In an economy, 42 million people are in the labor force, 38 million are employed, and 47 million are of working age. How many people are not in the labor force?
【多选题】道路交通是由人、车、道路与环境等交通要素组成,其中“人”包括( )。
【简答题】majority vary involves ethical as influences required applies constitutes allow Religion is an important aspect of life, it (1) a great many things. The odd...
【单选题】已知接成星形的三个电阻是 30 Ω、 30 Ω、 50 Ω,则等效三角形的三个电阻是
【单选题】已知接成星形的三个电阻都是30欧姆,则等效三角形的三个电阻为
【多选题】Today more and more people begin to understand that study does not come to an end with school graduation. Education is not just a college ; it is life itself. Many people are not interested in studyin...
【单选题】Many people are not used to __________ before many people.
【单选题】已知接成△形联结的三个电阻都是90Ω,则等效成Y星形的三个电阻阻值为 。
【单选题】Many people are not aware of ________ new technologies are already being used in the home.
【单选题】已知接成星形的三个电阻都是30Ω,则等效三角形的三个电阻阻值为( )