函数y=f（x）的反函数y=f^-1（x）的图象与y轴交于点P（0，2）（如图所示），则方程f（x）=0在[1，4]上的根是x=______．

Following a year of fast development, by the first quarter of this year, China has had about 1,100 e-commerce websites.

A．China had about 1,100 e-commerce websites by the end of last March

B．by the end of the first quarter of this year, China has had about 1,100 e-commerce websites

C．by the end of this recent past March, China has about 1,100 e-commerce websites

D．by the end of this first quarter, China had about 1,100 or so e-commerce websites