社会总产品的价值就是（）
A.社会总产值
B.国民生产总值
C.国民生产净值
D.国内生产总值
参考答案：A
(a) Calculate the net present value of Project A and advise on its acceptability if the project were to be appraised using this method. (12 marks)
华支睾吸虫的感染阶段是
A．囊蚴
B．虫卵
C．雷蚴
D．毛蚴
E．胞蚴
