1.at the age of侧重点：用于一般过去时或一般现在时，表示过去的或现在的年龄段发生的事。2.by the age of侧重点：用于一般将来时，表示大于现在的年龄以后想要做的某事。
网络释义 1. 绝经年龄 number of spontaneous abortion left... ... 月经史 menstrual history绝经年龄age of menopause痛经 dysmenorrhea ... www.docstoc.com|基于5个网页 2. 末次月经时间 ...of last period 初潮 每次持续时间末次月经时间(age of menopause) 绝经年龄 Amount of flow: little normal large...
age常指具有显著特征或以某杰出人物命名的历史时代或时期。epoch正式用词，侧重指以某重大事件或巨大变化为起点的新的历史时期。era书面语用词，指历史上的纪元、年代，可与epoch和age互换，侧重时期的延续性和整个历程。period最普通用词，概念广泛，时间长短不限，既可指任何一个历史时期，又可指个人或...
RESULTS: Among the 4724 women and 4029 men who were virgins at the beginning of the period, the median AFS was 18.5 and 19.2 years, respectively. In multivariable models, factors associated with earlier AFS across gender were periurban residence (vs rural), ever use of alcohol and knowing ...
The aim of this study was to investigate the long-term trends of human immunodeficiency virus (HIV) mortality in China and its associations with age, period and birth cohort. We used HIV mortality data obtained from the Global Burden of Disease Study (GBD) 2016 and analysed the data with an...
Middle age, period of human adulthood that immediately precedes the onset of old age. Though the age period that defines middle age is somewhat arbitrary, differing greatly from person to person, it is generally defined as being between the ages of 40 an
A. was the result of “protectionism” and “consumerism” B. was the most economically prosperous times in the U.S. C. was a term first used by a writer named F. Scott Fitzgerald D. was the only period when the unemployment rate was zero ...
This statistic displays the age distribution of pornhub.com visitors in the United Kingdom (UK) in 2019. In that year, 19 percent of pornhub.com visitors from the UK were between 35 and 44 years of age. Age distribution of pornhub.com visitors in the United Kingdom (UK) as of 2019 ...
To determine the relationship between exposure to repeated head impacts through tackle football prior to age 12, during a key period of brain development, and later-life executive function, memory, and estimated verbal IQ.Forty-two former National Football League (NFL) players ages 40-69 from the...
This graph illustrates the average age at which young French people were confronted with a pornographic film for the first time in 2013. Almost 30 percent of respondents said they were 17 years old or older the first time they saw a pornographic movie. ...