问题
选择题
The problem of the present world is that those who are imaginative have little experience_________those who are experienced have weak imagination.
A．unless
B．although
C．because
D．while
答案
D
题目分析：句意：当今世界的问题是富有想象力的那些人有很少的经验而有经验的那些人却有很少的想象力。A．unless除非； B．although尽管； C．because因为； D．while而。根据句意故选D。
