方程（m+1）x|m|+1=0是关于x的一元一次方程，则m[ ]
A．m=±1
B．m=1
C．m=﹣1
D．m≠﹣1
答案：B
The number of the people who speak English large, and a large number of people native speakers.
A．are; are
B．is; are
C．is; is
D．are; is
配额限制是( )的手段。
A．限制出
B．限制进
C．保护出口
D．保护进口
