绒毛膜上皮细胞癌选用:
A.己烯雌酚B.丙睾酮C.甲氨蝶呤D.马利兰E.放射性碘
参考答案:C
In the context of the English legal system, explain:
(c) the purposive approach, including the mischief rule. (4 marks)
使用NDB台导航时,应考虑()。
A.NDB台的作用范围
B.NDB台信号的发射方向
C.NDB台信号的衰减