单项选择题
If x is
pcrcent more than y，then y is what percent less than x（）
A. 9%
B. 10%
C. 11%
D. 12%
E. 15%
单项选择题
pcrcent more than y，then y is what percent less than x（） A. 9%
B. 10%
C. 11%
D. 12%
E. 15%