目的了解杀虫气雾剂、杀虫烟剂和蚊香对灾民居住区入室蚊蝇的快速杀灭效果。
Objective to understand the effect of aerosol, smoke and mosquito coil against mosquitoes and flies in residential areas of victims.
小贴士：提醒自己，烟里含有4000多种化学物质，其中有些甚至是杀虫剂和老鼠药的成分。
Tip: Remind yourself that there are more than 4, 000 chemicals in cigarettes, some of which are used in insect and rat poisons!
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