[单项选择]The selection says that every animal is a living radiator because it ______. A. produces heat in its body cells B. burns fuel to produce heat C. gives off heat through its skin D. requires oxygen to produces heat
参考答案:C 答案解析:第一段第一句话解释了为什么every animal is a living radiator,是因为heat formed in its cells is given off through its