【题目】Jim records his physical training every time so that he can it and think about how he should improve it the next day.
A.contribute to
B.lead to
C.attend to
D.refer to

【答案】D
【解析】句意：Jim每次都记录他的体能训练，这样他就可以参考它并且考虑如何在第二天做出改进。refer to意为：参考，符合题意。contribute to意为：有助于；lead to意为：导致；attend to意为：参加。故选D。