元朝时民族融合进一步加强，最主要的原因是[ ]
A．经济发展
B．交通发达
C．对外开放
D．国家统一
答案：D
He was so excited and insisted that what he had done completely______ their demand（要求）.
A．met
B．meet
C．should meet
D．has met
三元陈化
