【简答题】若x 2 +2x的值是6,则5-3x 2 -6x的值是______.
【单选题】若分式 1 5-x 有意义,则x的取值范围是( )
【判断题】集体决策的优点是决策迅速、责任明确。( )
【简答题】若 x 2 -5 的值大于-2x的值,则x的取值范围是______.
【简答题】若使代数式 x 5 -5的值不大于 x 2 -2的值,则x的取值范围是______.
【简答题】Generally speaking, when ____ according to the directions, the drug has no side effect. taking B. taken C. to take D. to be taken