来源于胎盘种植部位的滋养细胞肿瘤是（） ["持续性葡萄胎","再次葡萄胎","侵蚀性葡萄胎","绒癌","胎盘部位滋养细胞肿瘤"]
绒毛膜癌主要转移途径（） ["直接蔓延","淋巴转移","血行转移","直接蔓延和种植","直接蔓延和淋巴转移"]
侵蚀性葡萄胎主要转移途径（） ["直接蔓延","淋巴转移","血行转移","直接蔓延和种植","直接蔓延和淋巴转移"]
卵巢浆液性乳头状癌（） ["AFP","ACTH","CA125","E2","β-hCG"]
国内绒癌治疗后随访几年不复发为治愈（） ["1年","2年","3年","4年","5年"]
简述急性胰腺炎超声声像图表现。
