阅读理解
C
In China, there're many different kinds of foods.Some of them are very popular.The most popular Chinese food is the dumpling.Now let me tell you something about it, OK?
Many Chinese likes dumplings very much, and there are many different kinds of dumplings.Some have meat and vegetables in them, and some have eggs in them.I like dumplings with vegetables and pork better than any other kind.
Usually we make dumplings at home.If we have no time to make them, we can buy them from the supermarket.Then we take them home and eat them with vinegar．
The Spring Festival is very important in China.When it comes, we make dumplings.Usually we put a coin in a dumpling.It is said that one will be lucky if he eats the dumpling with the coin.
In the old days, people couldn't often eat dumplings, because they were very poor.Now the condition has been changed a lot.
，则△ABC必是等腰三角形；
，则△ABC必是直角三角形；
，则△ABC必是钝角三角形；
，则△ABC必是等边三角形。