我国错畸形的遗传因素约占错畸形病因的()
A.40% B.29.4% C.25% D.91.20% E.48.87%
单项选择题以理想正常验为标准,错畸形的患病率是()
A.20.33% B.40.92% C.60% D.86.81% E.91.2%