题目：In the last paragraph，the author mainly intends to
A．list the necessary changes we ought to make
B．advise US to make any necessary changes
C．explain what changes can bring
D． explain the process of making changes
喵查答案：B
概括文章最后一段可知，作者建议我们，改变无所谓大小，只要必要就需要改变。A项是对文章的片面理解；C项是文章的细节，不是段落的主旨。
