In the past decade, advances in the understanding of nutrient requirements of embryos, has led to the evolution of culture media designed to support extend... DA Blake,M Proctor,N Johnson,... - 《Cochrane Database of Systematic Reviews》 被引量: 849发表: 2005年 China's excess males, sex...
A study of the abnormal sex ratio at birth in China reveals that it is not an entirely new phenomenon that emerged since the 1980s, but is simply more visible at present. Deliberate intervention to determine the sex of children has existed in the past few decades, at least in certain grou...
In addition, the underreporting of female births inflates this imbalance in the statistics. 3 China’s practice of addressing the skewed SRB The rise and decline of the SRB in China coincides with the country’s rapid socio-economic development during the past several decades. Active governance ...
Moore ML.Preterm labor and birth: what have we learned in the past two decades. J Obstet Gynecol Neonatal Nuts . 2003Moore, ML. Preterm labor and birth: What have we learned in the past two decades? J. Obstet. Gynecol. Neonatal Nursing., 2003, PP. 32: 649...
现在完成时态,主语The city,第三人称单数,所以选A. 2.A 现在完成时,主要 结果一 题目 英语翻译1.The city___its birth-rate by almost 60/100 in the past 20 years.A.has cut B.cuts C.have cut D.has been cut2.The number of the students who failed the chemistry examination___to fifteen...
In industrial countries sex ratio at birth (SRB) varies between 1.07 and 1.03 with a decreasing trend in the past few decades. Population statistics of the past 20 years report that SRB in China is constantly and considerably increasing. According to official census data, the SRB of Chinese ne...
Our aim in this paper is to ascertain the situation with respect to sex ratio at birth in Viet Nam over the past five years. Original data were obtained from sample population surveys in Viet Nam recording annual birth rates since 2000 of about 450,000 women, as well as from two ...
aIn the past, Debit note will serve this purpose. 从前,借项帐单为这个目的服务。 [translate] aThe most distant way in the world is not the way from birth to the end ,It is when I sit near you. 最遥远的方式在世界上不是方式从诞生到末端,它是我在您附近坐。 [translate] ...
BEIJING, March 19 (Xinhua) -- The rate of infant mortality caused by birth defects in China has dropped by more than 30 percent over the past five years, according to China's National Health Commission. During this same period, the occurrence of severe birth defects, including neural tube ...
The live birth rate in Ukraine declined to 7.3 births per thousand population in 2021, which was the lowest figure over the past decade.