阅读短文并选择正确答案。
    Helen is an English schoolgirl. She is now in Nanjing with her parents. She doesn't know Chinese. She often tries to speak Chinese to her Chinese friends. Sometimes they don't understand(理解) her, because she can't speak Chinese well.
    It's a Sunday morning. Helen wants to go to Zhongshan park. She is going there to see a flower show(展览). But she doesn't know how to go there. She asks a Chinese boy. The boy can't understand her. Then she takes out a pen and some paper. She draws a park and some flowers on it and gives the picture to the boy and says something about it. The boy smiles and then shows Helen the way to the park.

关于我国民族区域自治制度，正确的理解是（  ）

①在有少数民族居住的地方实行区域自治　②自治权是民族区域自治制度的核心内容　③民族区域自治制度要以国家的统一为基础　④民族区域自治制度是我国的基本政治制度

已知方程2x²﹣x﹣1=0的两根分别是x₁和x₂，则x₁+x₂的值等于（   ）

The policeman helped the old woman go        the road.    

******在访问比利时时曾指出，我们要建设文明共荣之桥，把中欧两大文明连接起来。中国是东方文明的重要代表，欧洲则是西方文明的发祥地。正如中国人喜欢茶而比利时人喜爱啤酒一样，茶的含蓄内敛和酒的热烈奔放代表了品味生命、解读世界的两种不同方式。但是，茶和酒不是不可兼容的，人既可以酒逢知己千杯少，也可以品茶品味品人生。中国主张和而不同，欧洲主张多元一体。中欧要共同努力，促进人类各种文明之花竞相绽放。

结合材料，运用文化多样性的知识，说明中国茶和欧洲酒为什么可以兼容并存。