初中生最大的心理特点就是处于半成熟期，心理学家称之为“心理断乳期”，下列属于这一心理现象的是（    ）

恩格斯说：“假如不曾有拿破仑这个人,那么他的角色会由另外一个人扮演,这点由下面的事实可以证明,即每当需要这样一个人的时候,他就会出现,如凯撤、克伦威尔等。”其含义是

Jack_____his leg. Otherwise, he would have won the race.

武陵山片区是少数民族聚集多、贫困人口分布广的连片特困地区,被国家划定为集中连片特殊困难地区。在中央扶持和其他发达地区帮助下，该地区利用本地资源，大力发展特色产业实现脱贫致富。此举
①表明促进少数民族地区经济发展是我国中心工作     ②表明社会主义国家可以集中力量办大事
③有利于促进各民族共同繁荣，加强民族团结         ④确立了少数民族人民当家作主的地位

阅读理解

    Which of your hands do you use most ? Very few of us use both of our hands well. Most of us are right-handed. Only about five people out of a hundred are left-handed. New-born babies can take things with either of their hands, but in about two years they like to use their right hands. Scientists don't know why this happens. They have studied it. They think our animal ancestors(祖先) are right-handed. This may not be true. Monkeys are our closest relations in the animal world. Scientists have found that monkeys like to use one of their hands more than the other—but it can be either hand. There are as many right-handed ones. Next time you visit the zoo, watch the monkeys carefully. You'll see that some of them will swing(摆动)from their right hands and others will use their left hands. But most human beings(人类) use their right hands better and this makes life difficult for the left-handed ones. We live in a right-handed world.