因式分
(1)4x2-9
(2)4m2-8mn+4n2.
(1)原式=(2x+3)(2x-3);
(2)原式=4(m2-2mn+n2),
=4(m-n)2.
— Our holiday cost a lot ofmoney.
— Did it? Well, that doesn't matter ____ you enjoyedyourselves. [ ]
A. as long as
B. unless
C. as soon as
D. though
一个项目团队,有全职项目经理,作为一个独立单元和组织的其他部分分开,该项目属于()结构。
A.职能
B.平衡矩阵
C.职能矩阵
D.项目矩阵
E.项目