关于氟利昂的特性描述错误的是______。
A、无毒
B、无味
C、无燃烧爆炸危险
D、低毒
D
上一篇：Mike was 10 years old and he went to the Ashland School. He was very good at football, so he was ___
下一篇：钢结构建筑着火时，______是导致建筑发生倒塌的最主要原因。