介耗的高低受()等方面影响。
A、技术管理
B、设备性能
C、工艺流程
D、入料煤性质
E、介质性质
参考答案:A, B, C, D, E
能补胃阴的药物是()。
A.山药
B.黄芪
C.石斛
D.黄精
E.北沙参
In relation to employment law:
(b) State how the courts decide whether someone is an employee or is self-employed. (6 marks)