简述粉末显形法显现的方法。
参考答案:(1)刷显法
(2)喷显法
(3)抖显法
(4)磁刷法
—Would you like to play basketball with us this afternoon?
— _______. I have to study for tomorrow's test. [ ]
A. I'd love to
B. I'm afraid not
C. Sounds good
D. No problem
76548900的5在( )位上,表示( ),读作( )。