【单选题】从 链栈 中删除一个结点时,操作顺序应该是 。
【单选题】Nobody believes he made such a foolish mistake. People say he is very ( ).
【简答题】选择适当的方法解方程: (1)x 2 -3x=0. (2)y 2 +10y+2=0.
【简答题】A.He knew this beforehand. B.He judged from time zones. C.He made such a judgment so as to Wang. D.He gave such an explanation because he yzed the speeds of sound and electricity.
【简答题】解方程:x 4 +3x 2 -10=0.
【简答题】A.He knew this beforehand. B.He judged from time zones. C.He made such a judgment so as to Wang. D.He gave such an explanation because he yzed the speeds of sound and electricity.
【多选题】关于竞争与合作的关系,下列叙述正确的是( )
B.
竞争离不开合作,合作也离不开竞争,没有竞争的合作缺乏活力
C.
竞争促进合作的广度和深度,合作又增强竞争的实力
【简答题】______是实验中受自变量影响,揭示自变量对行为的作用结果。