旅行社战略最根本的特点是()
A.创新性
B.全局性
C.长远性
D.竞争性
E.稳定性
参考答案:B
—How was your weekend, Jeff?
—I had great ___ watching a football game.
A. interest B. time C. Fun
影响奥氏体晶粒大小的因素。