其它
Which does NOT have $-1$ as a solution?~\uline{~~~~~~~~~~}~ 
Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Inequalities
$A$ gives $-6\textless-5$. True.  $B$ gives $2 \geq 2$. True.  $C$ gives 1=1. True.  $D$ gives $-2\textgreater-1$. False. 