Ethyl 2-chloro-popionate是什么意思

用法例句

Analysis of the Current Situation of "2+2" Training Way and Research on Managing Model;

军校“2+2”组训方式现状分析及其管理教育模式研究

An important background of our present banking reform is that we are undergoing banking market entry, which has the characteristics of "2+2+2".

当前我国银行业改革的一个重要背景，就是面临具有“2+2+2”特点的市场进入。