Each of us has _________ life goals , which will guide us to a bright future . Without life goals , we may waste our lifetime
A:a little
B:few
C:a few
D:little
(xx2+x-1) ÷ x2-1x2+2x+1 ,其中x的值从不等式组 {-x≤12x-1<4 的整数解中选取。
既是我国主要钢铁产地,又是重要汽车产地的是( )
下列说法正确的是( )