The Noodle House has really good noodles. They are cheap, and they are great! You can get small, medium, or large bowls of noodles.

    The Noodle House has some specials. Special 1 has beef and tomato and is only ￥5. Special 2 has mutton and cabbage. It is ￥6. And Special 3 has chicken and carrot. It's only ￥8. I like it best.

    You can get some other great food at the Noodle House. For example, you can get 16 dumplings for ￥11. You can get great desserts! You can get strawberry, banana and orange ice cream.

    They are all nice! Try the Noodle House soon!

14÷6=____……____   55－5=____ 

6×7=____               70＋40=____ 

140＋80=____            160－80=____ 

250－70=____            600－400=____ 

在“测定电源电动势和内阻”的实验中，某同 学根据实验数据，作出了正确的U－I图象，如图所示，其中图线斜率绝对值的物理含义是(　　)

阅读材料并回答：

随着东欧的剧变和苏联的解体，东西方两大集团对峙的两极格局结束了。旧的世界格局已经终结，新的世界格局尚未形成。