第3题: [单项选择]Some countries in the disaster areas have difficulty in solving the problems of their ______ food supply. A. rare B. short C. scarce D. lack 参考答案:C 答案解析:题意是:一些灾区国家在解决其______食品供给的问题上有困难。[C]scarce“缺乏的,不足的”,符合题意。[A]rare“稀有的,珍贵的”,[B]short“弱的;短的”,[D]lack“缺乏,