在下列溶液中分别放入锌片，一段时间后把锌片取出，溶液质量减小的是 [ ]
A. 氯化钠
B. 硫酸亚铁溶液
C. 盐酸
D. 硝酸银溶液
答案：D
In relation to employment law:
(b) Describe the procedures that must be followed by an employer when an employee is dismissed. (5 marks)
存在着对应关系的账户，称为( )。
A．联系账户
B．平衡账户
C．恒等账户
D．对应账户
