【题目】If you have any doubts about your health, you'd better______ your doctor at once.
A.convince
B.consult
C.avoid
D.affect

【答案】B
【解析】句意：如果你对你的健康有任何疑问，你最好立刻向你的医生咨询。A.convince说服；B.consult咨询；C.avoid避免；D.affect影响。根据句意可知选B。