— Why are you in such a hurry?
—I am dying to see my brother. He is coming back home tonight.
A：can't wait to
B：remember to
C：allow myself to
某出版社出版某种书，今年每册书的成本比去年增加10%，但售价不变，因此每本利润下降了40%，那么今年这种书的成本在售价中所占的百分数是多少？下列正确的选项是（ ）
