题目

He didn't mean (embarrass) you. 答案：【1】to embarrass15．解比例和方程．5.4+2x=8.6      $\frac{1}{3}$：$\frac{1}{20}$=1$\frac{7}{9}$：x      $\frac{10}{x}$=$\frac{2.5}{0.8}$．