单纯形法中,最优性检验的依据是检验数,在求最大目标函数问题中,对于某个基本可行解,如果所有的检验数等于0,则这个基本可行解肯定是最优解。
A. 对
B. 错
关于时代精神,表述错误的是()。
A. 时代精神的核心是爱国主义
B. 时代精神是建设新时代中国特色社会主义、实现中国梦的强大精神动力
C. 时代精神赋予中华民族精神以新的时代内涵
D. 一切时代精神都将随着历史的变迁逐步融入民族精神的长河之中
4. AIDS is said ___________ the number-one killer of both men and women over the past few years in that region.
A. being
B. to be
C. to have been
D. having been
6. There are only ten apples left in the baskets, _____________ the spoilt ones.
A. not counting
B. not to count
C. don't count
D. having not counted