试题详情

Running can strengthen your heart and muscles, but conversely, it can also damage your knees and the bones in your feet.(2.0)

A 跑步能收缩你的心脏和肌肉,但是很显然,也会锻炼膝盖和脚骨。

B 跑步能锻炼你的心脏和肌肉,但是反过来说,也能锻炼膝盖和脚骨。

C 跑步能强健心脏和肌肉,但是反过来说,也会损害膝盖和脚骨。