题目内容：
There are ten blanks in the following passage .For each numbered blank, there are four choices marked A,B,C and D. Choose the best one and mark your answer on the ANSWER SHEET with a single through the center.Jazz is a kind of music that has often been called the only art form to originate in the United States. The history of _31__ began in the late 1800’s.The music grew from a __32___ of influences, including black American music, African rhythms, American band traditions and instruments, and European harmonies and forms. Much of the best jazz is still written and __33___ in the United States. But musicians from many other countries are __34___ major contributions to jazz. Jazz was actually __35___ appreciated as an important art from in Europe __36___ it gained such recognition in the United States.
The earliest jazz was performed by black Americans who had little or no training in Western music. These musicians drew on a strong musical culture from __37___ life. As jazz grew __38___ popularity, its sound was influenced by __39___ with formal training and classical backgrounds. During its history, jazz has absorbed influences from the folk and classical music of Africa, Asia, and other parts of the world. The development of instruments with new and __40___ characteristics has also influenced the sound of jazz.（ ） A．jazz
B．music
C．art
D．form
参考答案：
答案解析：