A:(x﹣1)2
B:x (x﹣1)2
C:x( x2﹣2x+1)
D:x (x+1)2
下列关于生物体的组成、结构与功能的叙述中,不正确的是
I want to _______a bike in the park .
复数1+ai2-i为纯虚数,则实数a=( )
— Must I wash my skirt tonight?
— No, you . You can wash it tomorrow.