The highest abortion rate was in A,then C and D which was significantly higher than in B and E(P<0.05). 异位妊娠率及流产率A组最高
THE abortion rate in America is at its lowest level for 30 years, according to a new study by the Guttmacher Institute, a reproductive-health research group. 生殖健康研究所古特马赫新出的一份研究显示，如今美国的人工流产率已经降到了其30年来的最低。
The total number of pregnancies in the 54 couples with chromosomal anomalies was 181, but they resulted in only 18 normal liveborn neonates, indicating a 90.1% abortion rate. 54对染色体异常的夫妇中总怀孕人次是181，但他们只有18正常存活新的生儿，这表明人工流产率为90.
S. were not the most sexually active.Denmark held that title.But, its teenage birthrate was one-sixth of ours, and its teenage abortion rate was half of ours. 尽管美国女孩的性行为并非最频繁，丹麦曾获此“桂冠”，但丹麦的青少年生育率和流产率分别为美国的1/6和1/2。
The poor light stress in solar greenhouse decrease the growth rate, increase the abortion rate and decrease the yield of cucumber.The cucumber from low light and shade environ... 弱光不仅影响植物的光合作用 ,也影响光合产物的运输和分配。