【名词&注释】
体外受精(in vitro fertilization)、晚期食管癌(advanced esophageal cancer)、食管癌切除(resection of esophageal cancer)、主动脉弓(aortic arch)、同源人工授精(artificial insemination by husband)、异源人工授精(artificial insemination by donor)、无性生殖(asexual reproduction)、胃吻合术(stomach anastomosis)
[单选题]目前,我国禁止的生殖技术是
A. 人工授精
B. 同源人工授精
C. 异源人工授精(artificial insemination by donor)
D. 无性生殖(asexual reproduction)
E. 体外受精