Some people have very good memories and can easily learn quite long poem（诗歌）by heart. Some people have1memories and can only2things that they have said again and again.
    The3English writer Charles Dickens said that he could walk down 4 street in London and then tell you the name of every shop on5sides of the street. Great men in the world have wonderful memories.
    A good memory is a great help in learning a language. Everybody learns 6language by remembering what he hears7he is a small child. Some children live with their parents in foreign countries and they seem8two languages as9as one. In school it is not so easy to learn foreign languages10students have little time11 it and they are busy with other subjects as well.
    A man's mind is quite like a camera but it12photos of what we see and it can also take photos of what we feel, hear, smell and taste. When we take a real photo13a camera there is much work14before the photo is finished and ready to show to our friends.15 the same way there is much work to do before we can keep a picture forever in our mind.

余额宝是由支付宝公司打造的支付宝资金余额增值业务。进入余额宝的资金由基金公司确认后获得收益，其收益远高于同期活期储蓄；同时，用户还能依托互联网随时消费支付和转出。据此回答下列问题。

下列对余额宝的认识正确的是（    ）。

①确保党在世界形势深刻变化的历史进程中始终领导时代潮流

②确保党在坚持和发展中国特色社会主义的历史进程中始终成为坚强领导核心

③确保党在应对国内外各种风险和考验的历史进程中始终成为全国人民的主心骨

④确保党坚持全心全意为人民服务的意识，切实履行好管理和服务职能，统筹发展