①文化发展要以经济发展为基础        ②文化交流增进了各民族间的相互理解

③文化与经济的发展是同步的          ④文化与经济之间具有相互交融的关系

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如图甲所示是小张“探究物体的动能与哪些因素有关”的实验装置．

    Hello ,my friends.I 1_free this Sunday. We have no classes. I would like 2 out tor a picnic with my family on the farm. My mother and I do some shopping3 the morning. My mother buys some4,like bread and chicken . I buy5bags of milk. A bar of chocolate needs 11 yuan , but I buy five 6 50 yuan. Bananas are my7 I take a lot of bananas with 8.On the farm we see many rabbits. They are very9.I like them very much. We are all 10  on that day.