【名词&注释】
体外受精(in vitro fertilization)、消毒剂(disinfectant)、同源人工授精(artificial insemination by husband)、牙尖斜度(cusp inclination)、异源人工授精(artificial insemination by donor)、无性生殖(asexual reproduction)
[单选题]碘酊作为口腔内消毒剂的浓度应是
A. 0.5%
B. 1.0%
C. 1.5%
D. 2.0%
E. 2.5%