第31题: [单项选择]An animal weighing less than 2.5 grams would starve because it would not be able to ______. A. get enough oxygen B. maintain its body temperature C. bum its food fast enough D. eat fast enough to supply fuel 参考答案:D 答案解析:文章最后一段指出体重不足2.5克的动物会饿死,是因为它们burn up its food too rapidly and would not be able to eat fast enough to