过氧化氢可用于丙烯酸树脂制成的外科埋植物，隐形眼镜、不耐热的塑料制品、餐具、服装、饮水等消毒和口腔含漱、外科伤口清洗。
参考答案：对
As drew we closer, I could see a whale by a pack of about six other killers.
A．be attacked
B．attack
C．being attacked
D．have attacked
乙炔管道着火，立即关闭阀门是属于于（）灭火方法
A.隔离法
B.窒息法
C.冷却法
