亚洲水稻种植业的特点有（）
A.机械化水平高
B.水利工程量大
C.单产量低商品率低
D.科技含量高
参考答案：B
In relation to employment law, analyse the importance of distinguishing between the following:
(a) a contract of service and a contract for services; (5 marks)
什么是中间再热循环？中间再热为什么能提高循环热效率？
