赤道横穿大陆中部的洲是[ ]
A．亚洲
B．非洲
C．南美洲
D．大洋州
答案：B
.
In the years____, the city government will take effective measures to bring the price of the house under control.
A．following
B．followed
C．follow
D．to follow
如果2x2y3与x2yn+1是同类项，那么n的值是【 】
A．1
B．2
C．3
D．4
