【名词&注释】
体外受精(in vitro fertilization)、核医学(nuclear medicine)、椎间盘突出(disc herniation)、脊神经(spinal nerve)、骨质增生(hyperosteogeny)、进一步(further)、椎间隙(intervertebral space)、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)
[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(artificial insemination by husband)
C. 异源人工授精(artificial insemination by donor)
D. 无性生殖(asexual reproduction)
E. 体外受精