题目

阅读下面材料，从每题所给的四个选项（ABCD）中选出最佳选项。D What do Napoleon, Clinton and Wang Nan have in common? They are all left-handed. Today, about 15% of the number of people is left- handed. But why are people left- handed? The answer is the way the brain(大脑)works. The brain has two halves--the right half controls the left side of the body, and the left controls the right side of the body. So right – handed people have a strong left –brain and left –handed people have a strong right – brain. The two halves of the brain are about the same size. But1.6964964…可以简记为 ，它是一个 循环小数，把它精确到百分位约是 ．