第15题: [单项选择]Kids may be spending too much time in front of computers and televisions, but are interventions (干预) designed to curb (抑制) that working An analysis of several reports finds that some do, but (67) may be needed.A. ethnic B. mortal C. ethical D. elastic 参考答案:A 答案解析:[解析] 形容词辨析题。本句对未来研究的研究对象做了补充,而且所选形容词与racial并列修饰minorities。本句的意思为“更多代表少数种族和民族的儿童也应当包含在研究之中”,ethnic“民族