20世纪50—70年代是资本主义经济快速恢复和发展时期，其中，经济发展速度最快的国家是 [ ]

A．英国    

B．法国    

C．意大利    

D．日本

The farmers needed________agricultural technology. Therefore,      ________skilled workers were sent there.

A．a great number of, a large amount of

B．large amounts of, the number of

C．a large amount of, a great number of

D．the amount of, a great number of