Among the statements about the city of Baghdad, which one is true?
A.It became a global center for collection and translation of vast numbers of works.
B.Medical texts were brought to the city from places as far away as india, egypt and spain.
C.It was via the route through spain that many greco- roman works were transmitted to the arab-islamic world.
D.Baghdad itself was a highly cosmopolitan city in which christians, jews, and muslims freely mingled.
E.All
正确答案是E