回购协议属于商业银行（）业务。
A.资产
B.负债
C.结算
D.中间
参考答案：B
下列哪种方法能帮助诊断深部脓肿（）。
A.检查有无波动感
B.细菌培养
C.用针穿刺
D.X线检查
E.B超
In relation to employment law:
(b) State how the courts decide whether someone is an employee or is self-employed. (6 marks)
