“削峰填谷”调节分配是个人所得税的一项基本功能。我国新的个人所得税法从去年9月1日起正式实施，6000万人免交个税。此举（   ）
①将大大降低我国的财政收入，影响宏观调控水平
②旨在缩小收入差距，促进社会公平
③有利于减轻居民负担，提高人民生活水平
④解放和发展生产力，体现了社会主义的根本任务

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    Tom lives in the UK. His friend Jack is in Dubai. He will go to see his friend. First he needs to go to London to take the plane.
    On Friday morning, Tom takes a bus to the train station. It takes Tom about 30 minutes to get there. Tom gets on the train at about 10 o'clock：The train leaves at 10：15. The train trip to London takes three hours. At lunchtime Tom gets to London. Tom eats a hamburger for lunch. Then he goes to the airport(机场)by subway. After about one hour,Tom gets to the airport. Tom gets on the plane at 8 o'clock in the evening. The trip takes a long time. Tom is tired(疲倦的)after a busy day. So he goes to sleep(睡觉). On Saturday morning, Tom gets to Dubai. He is very happy, because he will have a great time with his friend.

My brother used to _______ up late, but now he is used to _______ up early.

“几处早莺争暖树，谁家新燕啄春泥”描述了鸟的哪种繁殖行为（    ）