“微信扫一扫”进入"可可试卷"微信小程序刷题
填空:
\( \frac{3ab+3{b}^{2}}{6{b}^{2}}=\frac{a+b}{(\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em})}\)
参考答案:2b
进入考试题库