单选题
1.00分
Lead(铅)is potentially damaging to children's health.
参考答案: A
参考解析: 铅对孩子的健康有潜在的危害。harmful“有害的”,例如:the harmful effects of smoking吸烟的坏处。beneficial“有益的”,例如:Fresh air is beneficial to one's health.新鲜空气有益于健康。lead“通往,导致,带领”,例如:This misprint led to great confusion.这个印刷错误造成很大的混淆。ruin“毁坏”,例如:He ruined his prospects by carelessness.他因疏忽大意而断送了前途。只有harmful意思上和damaging最接近。