柏拉图在《理想国》中谈到了教育规划：儿童6岁开始入男女分校学习，接受同样的教育，并且根据个人的兴趣、爱好分别进入国家办的文法学校、弦琴学校和体操学校学习。学习内容  很丰富包括阅读、书写、计算、唱歌、音乐、体操、骑马、射箭等0—16岁毕业后，大多数人，尤其是手工业者、农民的子弟要进入社会做一个顺从的劳动者。而奴隶主子弟在17—20岁期间要接受较高一级的教育，培养他们的意志和勇敢，使之成为保卫国家的军人。体育训练是主要的学习内容，其次还要学习军人所必须掌握的知识，例如，算术、几何、天文、音乐。这一阶段的学习结束后，大多数奴隶主子弟结束学习，担负起保卫国家的职责，成为军人。只有极少数的人可进入更高一级的学校受教育。用20年的时间来研究辨证法，培养学生用理智去衡量各种事物。这是最后阶段的教育，学生50岁毕业后可担任国家的最高统治者，同时也成为哲学王。

——摘编自郑晓沧译：《柏拉图论教育》

请你根据表中的数据分析。

①  选择____小组的人数最多，选择____小组的人数最少。

②  选择羽毛球组的有____人。

在减数分裂过程中，同源染色体分离，非同源染色体自由组合是（   ）

    One night last February, a seventeen-year-old Duffy drove home along a winding road, he saw a strange light thrown against the tree. “I knew it wasn't the moon”, he said. “I drive this road all ____time and I notice little things out of place.”

    Duffy stopped his car and got out ____(examine). Below him far down in the deep valley lay a broken car with its headlights on. Thirty minutes earlier, a man had driven off the edge of the road, which has no guardrail(护栏). His car fell and rolled end over end, ____(land) on its top more than two hundred feet below.

    Duffy rushed to call for help, then returned and got down to reach the driver ____was badly injured. Snow covered the valley ____the temperature was below freezing. After struggling back up the cliff, Duffy took off his jacket and shirt and wrapped the man in time, along ____ the blankets from his car.

    Life-saving ____(deed) are starting to become usual action for Duffy, the oldest of seven children. When he was 12, he saved his ten-year-old brother from drowning. Two years ago, his three-year-old sister ____(eat) rat poison, and Duffy ____(instant) cleaned out her mouth, make her drink milk to protect her stomach and called doctors.

    “We personal belief is that it is____(meaning) for us to teach the children good values, and it looks like we have got some reward for it.” his father says.