方程x2-2x=0的解是（ ）。
x1=0，x2=2
—Would you please help me with my drawing skills?
— _________. You can come to my studio every Saturday.
A．That’s all right
B．No problem
C．No, thanks
D．Quite well
临时性爆破器材库储存的雷管最大储存量为（）。
A.2000发
B.5000发
C.8000发
D.10000发
