—Good night! — [ ]
A. Good night!
B. Good evening!
C. Good morning!
答案：A
—What happened to your English book?
—My little sister _____ some cola over some pages of it. [ ]
A. spilt
B. covered
C. increased
D. opened
技术方案的投资收益率大于基准投资收益率，说明( )
A．方案在技术上合理
B．方案在技术上不合理
C．方案在经济上不可行
D．方案在经济上可行
