(﹣a)2·a3=[ ]
A.﹣a5
B.a5
C.﹣a6
D.a6
答案:B
Last week, only two people came to look at the house, _______ wanted to buy it
A.none of them
B.both of them
C.none of whom
D.neither of whom
如图,已知△ABC的顶点B的坐标是(2,1),将△ABC向左平移两个单位后,点B平移到B1。
(1)写出B1点的坐标;
(2)画出平移后的图形。