利用所学化学知识判断，下列做法正确的是 [ ]
A．无色透明塑料袋都可以盛装食品
B．焚烧废旧塑料袋
C．使用可降解塑料
D．使用合成纤维制服装
CD
在虚拟页式存储管理系统中，地址越界中断属于
A．输入输出中断
B．程序性中断
C．时钟中断
D．自愿性中断
A class B fire is most successfully fought by（）.
A.preventing oxygen from reaching the burning material
B.cooling the burning material below its ignition temperature
C.using the extinguishing agent to make the burning material fire-resistant
D.using the extinguishing agent to absorb the heat
