远足
发表于 2025-3-28 17:07:30
https://doi.org/10.1007/978-3-642-70256-3rtility in China is below the replacement level, there are also scholars who believe that fertility in China falls below the lowest levels, and is at a par with fertility in some of the southern European countries (see Ren, 2005; Zhang and Zhao, 2006).
Anticoagulant
发表于 2025-3-28 21:13:25
A New Understanding of the Adolescent Mind,ontact persist. Injecting drug users and former commercial blood and plasma donors currently comprise about 55% of all infections, while 44% of infections are among female sex workers, their clients and partners.
geriatrician
发表于 2025-3-29 01:04:30
,Ökonomische Anwendungsbeispiele,en, in young cohorts of Chinese men and women contribute to the increasing failure of Chinese men to marry. These men, referred to as bare branches (.) since they will be unable to extend the family tree, are more likely to migrate to regions with more favorable marriage markets, and may be more likely to purchase sex.
紧张过度
发表于 2025-3-29 05:22:39
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GLUT
发表于 2025-3-29 11:10:55
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cleaver
发表于 2025-3-29 11:25:26
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Trigger-Point
发表于 2025-3-29 19:29:51
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HAWK
发表于 2025-3-29 20:50:24
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斑驳
发表于 2025-3-30 02:40:36
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外科医生
发表于 2025-3-30 05:36:44
Gender, Migration, and Unprotected Causal and~Commercial Sex: Individual and Social Determinants of population nationwide (Ministry of Health (MOH) and UNAIDS, 2003). Although the main route of HIV transmission is still needle sharing in the process of injecting drugs, heterosexual transmission of the AIDS virus is on the rise, increasing from 5.5% in 1997 to 10.9% in 2002.