china指的是什么?
China is the hometown of tea and the birthplace of tea culture. Since ancient times, tea has been known as the national drink of the Chinese nation. Whether it's Qin, chess, calligraphy, painting, poetry, wine and tea in the life of literati, or wood, rice, oil, salt, sauce and vinegar tea in the life of ordinary people, tea is a must.
At the same time, China is also an ancient civilization and a state of etiquette. Whenever guests or friends come, the etiquette of making tea and honoring tea is indispensable. With the development of cultural exchanges and commercial trade between China and foreign countrie.
Chinese tea and tea culture have spread to the world. At present, many countries grow tea in five continents, and many countries import tea from China. Chinese tea, like Chinese silk and porcelain, has become synonymous with China all over the world.
扩展资料：
茶，（学名：Camellia sinensis (L.) O. Ktze.），灌木或小乔木，嫩枝无毛。叶革质，长圆形或椭圆形，先端钝或尖锐，基部楔形，上面发亮，下面无毛或初时有柔毛，边缘有锯齿，叶柄无毛。花白色，花柄有时稍长；萼片阔卵形至圆形，无毛，宿存；花瓣阔卵形，基部略连合，背面无毛，有时有短柔毛；子房密生白毛；花柱无毛。蒴果3球形或1-2球形，高1.1-1.5厘米，每球有种子1-2粒。花期10月至翌年2月。
野生种遍见于中国长江以南各省的山区，为小乔木状，叶片较大，常超过10厘米长，长期以来，经广泛栽培，毛被及叶型变化很大。茶叶可作饮品，含有多种有益成分，并有保健功效。
茶多酚是茶叶中含量最多的一类可溶性成分，也是茶叶发挥其健康保健功效最主要的物质，最典型的代表是儿茶素（酚），具有抗氧化（消除氧自由基）、抗炎、降低心血管病发病几率、预防癌症、降血脂、减少体脂形成、抗菌、改变肠道菌群生态等多项功效。研究表明，喝下一杯茶半小时后，血中的抗氧化容量（对抗氧自由基的能力）增加41%~48%，并能在高水平状态持续一个半小时。
参考资料：百度百科-茶叶
