将一多项式2x3﹣5x2﹣x+1,除以(2x+1)后,得商式为(x2+mx+n),余式为0,那么m+n= ﹙ ﹚.
﹣2
一个项目组负责完成( )项目咨询任务。
A.1个B.2个C.3个D.多个
I used to quarrel a lot with my parents, but now we ________fine.
A.look out
B.stay up
C.carry on
D.get along