【判断题】If the undistributed profits of previous years are in surplus, the calculation of the base for drawing the legal surplus reserve shall not include the undistributed profits of the enterprise at the be...
【简答题】某溶液含有下表离子中的几种(不考虑水的电离及离子的水解).溶液中阴离子物质的量为0.2mol,阳离子物质的量为0.3mol,阳离子只有两种. 阳离子 Ba 2+ NH 4 + Fe 3+ Al 3+ Fe 2+ 阴离子 OH - CO 3 2- Cl - SO 3 2- SO 4 2- ①若向原溶液中加入过量稀盐酸,无气体生成,得到溶液A. ②向溶液A中加入过量稀HNO 3 ,再加AgNO 3 溶...