股票的内在价值取决于股息收入和市场收益率。( )
参考答案：对
解析： 股票的内在价值取决于股息收入和市场收益率。
Every possible means ________ to prevent the air pollution, but the sky is still not clear. [ ]
A. is used
B. are used
C. has been used
D. have been used
认为“执行与指挥的事务应采取首长制，制定政策法令宜采用委员会制”的人是（）
A.古德诺
B.怀特
C.泰罗
D.西蒙
