Nations are classified as "aged" when they have 7 percent or more of their people aged 65 or above,and by about 1970 every one of the advanced countries had become like this.请问句中的“ ...had become like this.”是什么时态?是倒装句吗? 答案 过去完成时 had +动词的过去完成时态,因为be...
Age-related macular degeneration (AMD), the most common cause of irreversible vision loss in individuals aged older than 50 years, is classified as either ... A Dewan,M Liu,S Hartman,... - 《American Journal of Ophthalmology》 被引量: 1873发表: 2006年 HTRA1 promoter polymorphism in wet ...
When teenagers do this, the photos and videos they create can be legally classified as child pornography since the law makes no exception for youth who create sexually explicit images of themselves. The dominant discussions about teenage girls producing sexually explicit media (including sexting) are...
In the absence of actual age evidence, we classified year classes into age classes using a conceptual model based on 2 assumptions: first, individuals grow as they age, and second, the population has an annual cycle of recruitment. The procedure can be applied to a collection of LFD from ...
More than half of the patients aged 45 years and older were classified as overweight (55.3%; 273/494). More than half of the women (245/401) had given birth to at least one child, 16.2% (65/401) had given birth to three or more children. Both inflammatory bowel disease and ...
The onset of sexual maturity is affected by age and size55. This appears to be the norm in our study and we assumed that maturation is a deterministic process. We classified birds by primary feather and spur characteristics as either juvenile female, adult female, juvenile male, or adult male...
MAIN OUTCOME MEASURE: Boys' maturation was classified as late, on time, or early maturing on the basis of the difference between SA and CA and of present height expressed as a percentage of predicted mature height. Kappa coefficients and Spearman rank-order correlations were calculated. ...
建立的规程和演算在压力允许流速从差别被推断。 [translate] aMSs were classified in each hotel according to type of certifi cate,age and integration of MSs. Seven dichotomous variables were MSs在每家旅馆里被分类了根据MSs的certifi cate、年龄和综合化的类型。 七二分可变物是 [translate] ...
The overall vaccine effectiveness was 73% (95% CI = 32% to 89%) when children were classified as vaccinated as soon as they were given measles vaccine. It rose to 96% (95% CI = 72% to 99%) when children were considered vaccinated 1 week postimmunization. Nineteen infants who were ...
An older adult is classified as robust when her/his functional capacity is conserved, and besides, phenotypic stability (or performance) is also maintained after the occurrence of a clinical stressor4. Importantly, frailty is the main risk factor for the development of disability among the ...