某投资者以8元价购入某股票1手,持有期中获股利每股0.50元,之后以8.50元售出全部股票,其投资收益率为()。
A.7%
B.12.5%
C.6.25%
D.15%
参考答案:B
Man: Excuse me, I was told I could find Dr. Adkins here.Woman: And you have.Question: What does the woman mean
A.She's Dr. Adkins.
B.She has to find the doctor.
C.The doctor has been expecting the man.
D.The doctor will be with the man shortly.
费米空间望远镜发现5个新的毫秒脉冲星的时间是()
A、2005年
B、2006年
C、2008年
D、2010年