— Let's go and have a good drink tonight.
— Have you got first prize in the competition?
A:What for?
B:Thanks a lot.
C:Yes, I'd like to.
D:Why not?
是谁看到的?在横线上填写答案。
____ ____ ____
8×6=____ 7×9=____ 0×18=____ 520+40=____ 45÷6=____
900-200=____ 510+170=____ 380-300=____ 600+150=____ 45÷9=____
表:
注:皮草是指利用动物皮毛制成的服装。
已知a为非负数,则下列各式中正确的是( )