concept stock的用法和样例：
例句
- China Concepts Stock is a set of stock of companies whose assets or earnings have significant activities in Mainland China.
中国概念股是指一系列以在中国大陆的资产或营收为其主体组成部分公司的股票。 - Companies listed companies are currently the most pure concept stock futures, while in the futures market, China is among the best medium-term strength.
公司是目前上市公司中最为纯正的期货概念股，同时在期货市场中，中国中期的实力也是名列前茅。
