问题
单项选择题
What is the ratio of 3/7 to the product 3(7/3) ？（）
A. 3:7
B. 1:3
C. 3:21
D. 1:7
E. 3:49
答案
参考答案：E
解析：
can be restated as 7. If you multiply 7 times both numbers to get rid of the fraction in 3/7, you get 3 and 49.