【判断题】Throughout the 19th century, America concentrated on creating a nation that spanned the continent. For example, the 1903 Louisiana Purchase from France doubled the nation’s geographical area. _____
【简答题】Please read the following paragraph aloud and pay attention to the red parts. Henry Ford neither invented the automobile nor the moving assembly line technique of mass production , yet he changed this...
【简答题】Music reached its pinnacle in the 19th century. Every leading nation produced its share of great composers. There was a bewildering array of national schools and musical styles as the once obscure mus...