A: I need to buy medicine for my splitting headache. B: Here is the one you can take. It is ___, no prescription needed.
Aclinic
Bside effect
Cover-the-counter正確答案
Dsymptom
答案與詳解
C
正確答案
本題測驗旅遊醫療情境單字，「over-the-counter」(OTC) 指不需處方箋即可購買的成藥，符合後文語意。
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