【题目】Health reports believe that even a little exercise is rather better than ___ at all.
A.no one
B.none
C.nothing
D.anything

【答案】B
【解析】考查代词辨析。A. no one没有人；B. none没有；C. nothing没什么；D. anything任何事情。句意：健康专家相信甚至一点点锻炼要比根本没有好多了。根据句意可知，此处指代“锻炼”。故选B。