yellow+blue+（ ）=black

yellow+blue+（ ）=black blue+red=?blue+yellow=?red+yellow=?white+black=? 英语加法red+yellow= yellow+blue= red+blue= black+white=white+red (1/2)White+black= red+yellow= yellow+blue= red ()+red=pink white+black=() ()+yellow=orange black+blue=() Red+blue+Yellow= blue+red+yellow= red+yellow+blue=? red+yellow+blue= black+blue= YELLOW,RED,BLUE,BLACK这四个单词分别是哪四种颜色? white blue yellow black brown red puprle pink gr