A x > 0
B
; 
C 
D 
> 0
A x > 5
B x < 5
C x
5
D x
5
A 
B ![x\epsilon [1,2]](http://images.tuyensinh247.com/picture/learning/exam/2014/1018/65489_117928_1.gif)
C ![x\epsilon (1,2]](http://images.tuyensinh247.com/picture/learning/exam/2014/1018/65489_882835_1.gif)
D 
A x > 0
B
; 
C 
D 
> 0
A x > 5
B x < 5
C x
5
D x
5
A 
B ![x\epsilon [1,2]](http://images.tuyensinh247.com/picture/learning/exam/2014/1018/65489_117928_1.gif)
C ![x\epsilon (1,2]](http://images.tuyensinh247.com/picture/learning/exam/2014/1018/65489_882835_1.gif)
D 
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