2014
高考英语阅读理解二轮专题训练精品题（11）及答案 阅读理解-----a a caring mother is the single most important factor in preventing teenagers from abusing(滥用)drugs and alcohol，researchers said on friday. an international study showed that teenagers living with both parents are less likely to suffer from alcohol and drug problems，and a strong maternal bond is the most effective way to fight against
