军队共青团工作要充分发挥党的（）、完成任务的（）和联系广大青年的（）。
A、助手作用
B、突击作用
C、桥梁作用
D、参谋作用
参考答案：A, B, C
A．碳酸氢钙溶液中加入过量的氢氧化钠溶液
HCO＋OH－===CO＋H2O
B．氯化铁溶液中通入硫化氢气体
2Fe3＋＋S2－===2Fe2＋＋S↓
C．次氯酸钙溶液中通入过量二氧化碳
Ca2＋＋2ClO－＋H2O＋CO2===CaCO3↓＋2HClO
D．氯化亚铁溶液中加入硝酸3Fe2＋＋4H＋＋NO===3Fe3＋＋2H2O＋NO↑
In relation to the Contract Law of China:
(b) State the types of conduct a party might engage in during the making of a contract which would make him liable for any loss thereby caused to the other party. (3 marks)
＋OH－===CO
＋H2O