定义在R上的可导函数f(x),已知y=e f ′(x)的图象如下图所示,则y=f(x)的增区间是( )
A:(-∞,1)
B:(-∞,2)
C:(0,1)
D:(1,2)
I think life will be different in the future. People 1live under the sea or on the moon. They can fly to the moon in a short time 2 spaceship. People will travel to other planets too. Robots will3all the housework for people. They can even take care 4 babies for people. No one will 5newspapers. All the people "see" news with a pair of special glasses.