已知函数f（x）=ex+1-3x，则f′（0）=（ ）
A．0
B．-2
C．e
D．e-3
f′（x）=ex+1-3
∴f′（0）=e-3
故选D
I like milk, I don't like orange juice.[ ]
A. but
B. and
C. either
