挑战习题
1/5单选题
难度:

1.用不等式表示a的一半与2的差大于-1,正确的是(  )
A (a−2)>−1
B a-2>-1
C (a-2)≥-1
D a-2<-1
提示1:
IOWIqeeUqOWFs+mUruaPj+i/sOivreaYr++8muW3ruWkp+S6ji0x77yM6KGo56S65Ye6YeeahOS4gOWNiuS4jjLnmoTlt67vvIzljbPlj6/lvpflh7rnrZTmoYgu
正确答案:Qg==
6Kej77ya5qC55o2u6aKY5oSP77yM5b6XPGltZyB3aWR0aD01IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzBDL3JCQUNGRk5zU2RuQ2Z1b29BQUFCR2FqMnNOUTgwMC5wbmciPmEtMu+8ni0xLiA8YnI+5pWF6YCJ77yaQi4g