拐折的需求曲线模型的基本假定是，行业内某个寡头厂商提价时，其他寡头厂商都会仿效
参考答案：错
I think that the desk in the shop differs ____ the one I have at home _____ colour and size.
A．from; about
B．from; in
C．in; from
D．with; on
“先天下之忧而忧，后天下之乐而乐”是( )的千古名句。
A．韩愈
B．王安石
C．苏东坡
D．范仲淹
