题目

下列属于健康状态的是（   ）A．精力旺盛，一天只睡2—3小时即可   B．没病没灾C．吃得饱，睡得好   D．身体健康，心理健康，有良好的社会适应状态  答案：D解析:略  We found ______ very difficult for the children to understand what the chairman said at the meeting. A．that        B．its         C．this          D．it