Home to ________and gangsters, officials and laborers, refugees and artists, the city was, in its prime, a metropolis that exhibited all the hues of the human character.

A．magnates

B．magnets

C．machines

D．magnitudes

发展对外经济关系，实行对外开放，是我国的______。

A．当前的权宜之计
B．社会主义初级阶段的政策
C．长期的基本国策
D．实现现代化时期的政