According to World Health Organization, how many people am killed by outdoor air

游客2023-09-15  41

问题 According to World Health Organization, how many people am killed by outdoor air pollution? [br] The pesticide DDT can be effective against ______.

选项 A、malaria
B、wildlife
C、animals
D、human nervous system

答案 A

解析 根据题干信息词the pesticide DDT定位到第二个小标题下的第二段。即:杀虫剂DDT会伤害野生动植物并且能影响人类的神经系统,但对预防疟疾是很有效的(be effective against malaria),故选A。
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