题目

Ballet for children and teenagersIt can take a long time to reach a professional level in ballet, so most dancers begin their training very young. It is essential that very young dancers learn the ballet movements properly right from the beginning. 【1】 This is because it is usually more difficult to change old habits than to learn new ones.The first thing that young children who are interested in learning to dance often do is attend creative movement classes, where they can practice basic skills like jumping and turning, and just have fun. 【2】 In addition, some people recommend that th读我国河流径流量（m3/s）随时间的变化简图，回答1—2题。 1、①、②代表的河流可能分别是 [     ]A、松花江、塔里木河 B、淮河、海河 C、黄河、黑龙江 D、海河、汉江 2、若③为我国东南沿海河流夏秋的流量变化，造成该河流流量大增的自然因素最可能是 [     ]A、地形雨 B、地下水大量补给河流 C、台风雨 D、风暴潮引起河流水位高涨