单选题
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
【正确答案】
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 skin，即细胞内产生的热量通过皮肤散发出去。
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