选择题
2020 AMC 8 Problem 20: Tree Heights
A scientist walking through a forest recorded as integers the heights of 5 trees standing in a row. She observed that each tree was either twice as tall or half as tall as the one to its right. Unfortunately some of her data was lost when rain fell on her notebook. Her notes are shown below, with blanks indicating the missing numbers. Based on her observations, the scientist was able to reconstruct the lost data. What was the average height of the trees, in meters?
2020 AMC 8 第20题：树高
一位科学家走过森林，用整数记录了五棵排成一排的树的高度。她观察到每棵树的高度要么是右边那棵树的两倍，要么是它右边那棵树的一半高。不幸的是，当雨水落在她的笔记本上时，她的一些数据丢失了。她的笔记如下所示，空白表示缺失的数字。根据她的观察，科学家能够重建丢失的数据。树木的平均高度是多少，以米为单位
A.
22.2
B.
24.2
C.
33.2
D.
35.2
E.
37.2