sex partner

Yet, there must be evolutionary advantage in sex with a partner.

不过，与性伙伴发生性行为必然有其进化上的优势。

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We are attracted to our friends from a universal standpoint because they serve as companions as an opposite sex partner would to its mate.

从普遍的观点来看，我们受朋友的吸引是因为他们作为同伴和一个与其结合的异性伴侣一样。

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Thus the human male can't be sure when his sex partner is fertile.

因而，男人无法肯定他的女人，当下是在怀春？

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When having sex with regular partner and commercial sexual partner, 32.9% and 46.7% of the respondents used condom at last sexual contact.

在与固定性伴和商业性性伴发生性行为时，最近一次性行为时使用安全套的比例分别为32.9%和46.7%。

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Sexual risk behavior was determined comprehensively by factors at individual, sex partner, family and community level as well as health care services.

HIV感染者的危险性行为与个人，性伴、家庭和社会支持以及医疗卫生服务等多种因素有关。

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CSW cases with abroad sex-partner accounted for 0.2 %.

0.2%的暗娼性伴中有境外人员.

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Investigation on Sex Partner Notification and Influence Factors among Male STD Patients

男性STD患者性伴侣通知意愿调查分析

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In the life must pay attention to health, sex partner and their health please away from sexually transmitted diseases.

在生活中一定要注意性生活卫生，为了伴侣和自己的健康请远离性传播疾病。

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Speaking of which, educated wives also get better sex, whatever their partner's educational level, according to the sexuality researchers Pepper Schwartz and Virginia Rutter.

提到这一点，性研究员佩珀·施瓦兹（Pepper Schwartz）and弗吉尼亚·瑞特（Virginia Rutter）认为受到良好教育的妻子的性生活更加和谐，而不论他们伴侣的教育水平如何。

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Conclusion Some risk factors as casual attitude toward sex, multiple sex partner, commercial sex, same sex and bisexual behavior, and low self-protection and disease prevention awareness put students at risk of abortion and STD/ HTV infection.

结论大学生性态度开放，多性伴、商业性行为、同性和双性性行为以及防病意识和自我保护意识差等使大学生处于流产、艾滋病性病感染等危险之中。

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In 3009 clinic STD patients, there were 4 people whose HIV antibody was electropositive. The STD infection ratio was 84.7%, 37.6% of them had more than one sex partner.

3009例性病门诊就诊者中检出4例HIV抗体阳性，性病感染率为84.7%，37.6%的人有多性伴。

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In addition, the patients with multiple sex partners were more vulnerable to cervical inflammation than those with single sex partner.

同时显示，多个性伴的患者解脲支原体感染较单一性伴者更常伴有子宫颈炎症。

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58.01% of them had more than 2 sex partners in recent 12 months while only 17.63% used condom with the last commercial sex partner.

在最近12个月中，至少有2个性伙伴者占58.01%；

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