平面控制测量等级划分:hull and white on Derivatives

hull and white on Derivatives black and white 中的吉他手 谁知道这首歌《on and on》 请问 on and on 是什么意思 write in black and white.什么意思？ Rideeles It is cold and white . BLACD AND WHITE的歌词索取 Black box testing and white box testing. on and off是什么意思? What’s black and white and read all over?