计算:(x+3)(x-2)的结果是______.
(x+3)(x-2)=x2-2x+3x-6=x2+x-6;
故填:x2+x-6.
What a pity!He the only chance of success.
A.threw away
B.put down
C.gave in
D.broke off
钢线的高度略低于钢刀高度,通常为()。
A.22~23mm
B.21~22mm
C.22~23.8mm
D.22.5~23mm