So long as the child is shown exactly how to do something--whether it be placing a key in a key slot, drawing a hen or making up for a misdeed-- he is less likely to figure out himself how to accomplish such a task.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】来苏水的有效化学成分是 (3.0分)A. 甲醇 B. 甲醛 C. 苯酚 D. 蚁酸 B. 甲醛 C. 苯酚 D. 蚁酸