-_________, are you Jane?
-Yes, I am.
A:Excuse
B:Excuse me
C:Sorry
D:How are you
将多项式﹣6a3b2﹣3a2b2+12a2b3分解因式时,应提取的公因式是( )
Ms Jones needs one____(人)to help her do the work.
选择合适的解释,再把序号填在括号里
请您原谅我吧!( )
若解分式方程x-1x+4=mx+4产生増根.则m等于( )