胎盘部位滋养细胞肿瘤首选治疗方法是：
A．化疗
B．放疗
C．手术切除子宫
D．清宫术
E．免疫治疗
参考答案：C
Zhong Nanshan is as _____ a s Yuan Long ping.[ ]
A. more famous
B. most famous
C. famous
D. much famous
能源标准的内容有哪些？
