股票回购可优化资本结构，股息避税，阻止恶意收购等。
参考答案：对
常用的心理辅导方法有哪些？
—I'm doing a survey. Could you tell me ______?
—Sure. I usually go to work at 7:00 am.
A．why you go to work
B．how you go to work
C．when you go to work
D．who you go to work with
