分解因式2x²-4x+2的最终结果是（    ）

一个容量为80的样本中最大数是142，最小数是50，取组距为10，可以分成（   ）

   The   1   in Britain is very different from our Chinese food. For example, they eat a lot of potatoes. They like to eat 2  every day. They eat bread  3  breakfasts and usually for one other meal. They eat their bread with butter,   4  cheese or jam(果酱). Cheese and butter are made from   5 .They drink a lot of milk, too. They drink the milk cold or 6 and they put it in their tea. They put sugar in their 7, too. They are the world’s biggest tea  8 . They don’t eat much rice. And they like meat or fish with  9 and other vegetables. They serve all these together. After the main meal they always have  10  sweet. They call this dessert. They don’t have dumplings in Beijing.