【名词&注释】
体外受精(in vitro fertilization)、继发性(secondary)、上皮细胞(epithelial cells)、劳动保护(labor protection)、同源人工授精(artificial insemination by husband)、异源人工授精(artificial insemination by donor)、多胎生育、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
C. 异源人工授精(artificial insemination by donor)
D. 无性生殖(asexual reproduction)
E. 体外受精