单选题 This country could have as many as 10 million cases of AIDS in 2010 if the______ is not taken seriously.
A. episode
B. epidemic
C. equivalent
D. eruption

【正确答案】 B

【答案解析】[解析] 四个选项中，A项episode n. “一段情节”；B项epidemic adj. “流行的，传染的”。n. “流行病”，例如：an epidemic outbreak of in fluenza．流行性感冒的爆发性蔓延；C项equivalent adj. “相等的，相当的”。n. “等价物，相等物”；D项enuption n. “火山爆发”。译文：如果不认真对待，这个国家会在2010年出现1千万艾滋病病例。