图中反映的是供给与需求同时变动对均衡点的影响（图中横轴为供求量Q，纵轴为价格P, D为需求线,s为供给线，变动的方向为D—D₁，S-S₁，，两组供求线交点E₀和E₃为均衡点，E₀点对应的价格是P₀，E₃点对应的价格是P₃）。以下经济现象与图示所能反映的变动状况大体不一致的是（   ）

①消费者对国产奶粉不信任过度依赖洋奶粉，导致洋奶粉频频提价
②汉宜铁路7月1日通车后，该线路的公路客运票价立马打对折
③去年猪肉价格大幅上涨，养猪户纷纷扩大养殖规模，导致今年下半年猪肉价格大幅下降
④正宗的阳澄湖大闸蟹由于产量少，价格远高于其他同类产品

完形填空

    This is a map of our school. There are1 buildings in our school: a library, an office building, a class building, a dinging hall and a sports hall. The library is2the left of the class building. There3many books in the library. We study in the class building, and after class, we often read books in the4. Our teachers work in the5 . This is a building6 twelve offices. Four teachers are in one office. Our school is old,7we have a big sports hall. We8 in it. What's your favourite9? Let's play it in the sports hall. I 10 my school very much. It's very good.

甲队有工人272人，乙队有工人196人，如果要求乙队的人数是甲队人数的$\frac{1}{3}$，应从乙队调多少人去甲队．如果设应从乙队调x人到甲队，列出的方程正确的是（　　）

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一个数是由8个亿、3个百万、5个十万和4个十组成的，这个数写作____，省略“亿”后面的尾数约____亿。