把多项式3x -6xy+3xy 分解因式结果正确的是( )
A:x(3x+y)(x-3y)
B:3x(x -2xy+y )
C:x(3x-y)
D:3x(x-y )
—Three times a week.
If you ___________ too much money on the dress, you will have none to have lunch.
用所给出的词语造句。
①宽广:
②奔跑:
—Yes, of course.
如图为局部区域经纬网图示,虚线为日界线,阴影表示黑夜.读图回答下题.