The bird and the tree are friends．The bird often sings songs in the tree．Autumn comes．The bird has to fly to the south．Spring comes.The bird comes back，but she can’t see the tree．Grass tell her some workers cut the tree down and took him to a factory．Then the bird flies to the factory．The workers told her they cut the tree into wood．They used the wood to make matches．Then they took the matches to a village．The bird flies to the village and sees a girl used the last match to make the fire．The bird sings a sad song to the fire．

我国四大国有商业银行为了提高自身的盈利能力和抗风险能力，适应国际化竞争的需要，在20世纪90年代进行了三次大的改革。据此回答下列问题。

对四大国有商业银行进行股份制改革是为了（   ）

①增强国有商业银行的整体实力和竞争力   

②推动建立现代企业制度

③使股份制成为公有制的唯一实现形式     

④扩大国有资本的支配范围

2015年10月5日，获得诺贝尔奖的中国女药学家屠呦呦对前往看望她的领导说：青蒿素的发现是中国科学家集体荣誉，是中国的骄傲，也是中国科学家的骄傲。对此你的看法是（   ）