单项选择题
A．2 B．3 C．4 D．5
A．develop a new spaceship B．enlarge its research field C．send astronauts to the moon D．cut down its expenses in space research
A．The area was economically unified. B．The authorities were unable to enforce law and order. C．The two governments fought for control of the area. D．Most of the people living there spoke only Frenc