题目

—I hope to take the DIY course at weekends.       —Good idea. ______ more about it, visit the website. A. Know                          B. Knew                       C. Knowing                  D. To know 答案：D2．0.96：0.8的比值是1.2       $\frac{3}{2}$：$\frac{1}{4}$化成最简整数比是6：1．