在组织内部，竞争（）
A.是一种最活跃的因素和力量
B.不存在
C.必然使组织系统发生进步性变化
D.不会使组织系统发生破坏性变化
参考答案：A
—I’m very tired these days because of studying for physics.
—Why not ______ music. It can make you _______.
A．listen to; relaxing
B．listen to; to relax
C．listening to; relax
D．listen to; relaxed
My birthday is _________ April 8.[ ]
A. on
B. in
C. at
D. of
