试题.net
试题要求:

Paragraph①_____.

试题解析:
答案:B
解析:

  该段的中心句为本段的第一句,"Exercise has obvious benefits to the teen body, but not all of them are physical.",运动对青少年身体有明显的好处,但并非所有的都是身体上的。故选B。

考点: