【名词&注释】
体外受精(in vitro fertilization)、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]诊断肾肿块最可靠的检查方法是
A. B超 B. 肾图 C. IVU D. 腹平片 E. CT