BOOSTGRE题库
您还没有登录，登录以后才可以查看答疑和进行提问。
试题详情
A mouse will travel from the top of the pyramid-shaped diagram. At every cross point,
the mouse can only choose to go either left or right. How many different ways can the
little mouse travel from Level 1 (top point) to Level 5 (the bottom level) of the diagram?
Answer Choices: 16, 20, 45, 35, 46答案：16（1/4）