-- Excuse me, Can I take a seat here?
-- _______. The woman who sat here will be back soon.
A:We'd better not
B:No, thank you
C:Yes, please
D:I'm afraid you can't
甲、乙两人练习跑步,若乙先跑8米,则甲跑4分钟可追上乙;若乙先跑2分钟,则甲跑5分钟可追上乙.若设甲的速度为x米/分,乙的速度为y米/分,则下列列出的方程组中正确的是( )
如果(x﹣2)(x+3)=x2+px+q,那么p、q的值为( )