— Stress can be extremely harmful to your health. Exercise can reduce its bad effects.

问题补充：

— Stress can be extremely harmful to your health. Exercise, , can reduce its bad effects.

— I can’t agree more.

A. therefore

B. meanwhile

C. besides

D. otherwise

答案：

A. therefore

(答案→)B. meanwhile

C. besides

D. otherwise

解析：句意：— 压力可以对你的健康极其有害。练习则可以减少其不良影响。— 我非常同意。A. therefore因此；B. meanwhile于此同时；C. besides而且；D. otherwise否则的话。由句意可知选B。

考点: 考查副词词义辨析的用法。