性交

The second is experience of climax acquired in early life, especially in childhood, through non-coital behaviors, or chiefly not through sensory information from coitus with the opposite sex of the same age, which has left a deep memory trace in the central nervous system.

第二个原因是早年，尤其是儿时，通过非性交的行为，或者主要不是通过与同龄异性性交所得感官感受而获得性高潮的经验，在其中枢神经系统中留下深刻的记忆痕迹。

They are used for penetrative sex but can be used during oral sex as well to protect against sexual transmitted infections.

它们被用来为深入式性交，但可用于在口交，以及为了防止性传染疾病。

In it, he planned to investigate the history of "the procreative drive" and that of prostitution. The work was never completed, but in his sketch Humboldt, for the first time, introduced a morally neutral classification of human sexual behavior according to its four possible objects

不过，遵照现时的科学术语规则，我们将把第二和第三个分类命名为异性性交和同性性交 [1](前缀" hetero -"和" homo -"在希腊语里，准确的含义为"不同的"和"相同的")。

After that day, TIAN Xiang has been living in self-torture Oliver, the dynamic not, people gradually fade, and the twinkling of an eye early thirty, but he dare not even talk the object, the object must talk of marriage to sexual intercourse, sexual intercourse is likely to spread sexually transmitted diseases, he did not think that the first woman to be reliable.

此后的日子里，田祥一直生活在自我折磨苦海里，朝气全无，人渐憔悴了，转眼三十出头，可他连对象也不敢谈，谈对象就得结婚性交，性交就有可能传染性病，他认为这年头没有女人是可靠的。

The PCT should be performed 8 hours after intercourse and 1 to 2 days before the predicted time of ovulation, when there is maximum estrogen secretion unopposed by progesterone.

性交后试验应该在性交后8小时进行，并比预测的排卵期提前1－2天，此时雌激素达最大而孕激素未明显分泌。

In fact, because Hymen hole of the circle is very small,great majority female is in after first time sexual intercourse can contain one little toe only commonly, the meeting after the penis is inserted causes Hymen to be in or much place is torn, bring about first sexual life bleeds, later as coital number increase, vaginal mouth also increases gradually, hymen crack also assumes much office or show dated sex loss.

事实上，绝大多数女性在第一次性交后由于圆形的处女膜孔很小一般仅能容入一小指，阴茎插入后会致使处女膜一处或多处被撕破，导致首次性生活出血，以后随着性交次数增多，阴道口也逐渐增大，处女膜裂痕也呈多处或呈陈旧性损伤。

"Overall, our findings are reassuring for users of natural family planning, for couples who have intercourse episodically, or for couples who have intercourse infrequently of their own volition for health or other reasons," the authors write.

作者写道：「总结来说，我们发现，对自然计划生育的使用者，关于短暂性交，或为了健康或其它原因在排卵期性交不频繁的夫妇的观点再次加以验证。

"Overall, our findings are reassuring for users of natural family planning, for couples who have intercourse episodically, or for couples who have intercourse infrequently of their own volition for health or other reasons," the authors write.

作者写道：「总结来说，我们发现，对自然计划生育的使用者，关於短暂性交，或为了健康或其他原因在排卵期性交不频繁的夫妇的观点再次加以验证。

But if u fucks wid me i gotsa fuck wid u.....

但，如果u与wid性交我i gotsa性交wid u 。。。。。

Results:weijian obviously shortened the latent period of erection in castrational rats after electric stimulus and the latent period of coitus in castrational mice,increased coitus times in castrational mice,increased the appearance rate of sperm suppository in copulated female mice. the acute toxicity tests showed that the half lethal dose(ld50) of weijian was 901.53 mg/kg and 319.60 mg/kg, the long-term toxicity tests showed that large dose of weijian slightly increased the level of glutamic pyruvic transaminase and decreased the glucose,triglyceride and cholesterol of blood, while had no effects on other biochemical factors.

结果： 伟剑能明显缩短去睾丸大鼠的电刺激阴茎勃起潜伏期，明显缩短去睾丸小鼠的性交潜伏期，并增加去睾丸小鼠的性交次数，增加交配后雌性小鼠的精栓出现率；急性毒性试验测得伟剑的口服半数致死量（ld50）为901.53 mg/kg，腹腔注射的ld50为319.60 mg/kg；长期毒性试验研究表明该药在大剂量时可轻度升高谷丙转氨酶，轻度降低血糖、总胆红素及胆固醇，而对其他血液生化指标无影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。