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汉语拼音：yáng xìng

1.诊断疾病时对进行某种试验或化验所得结果的表示方法。如果体内有某种病原体存在或对某种药物有过敏反应，则结果呈阳性。

2.某些语言里名词（以及代词、形容词）分别阴性、阳性，或阴性、阳性、中性。

• In most languages adjectives have slightly different spellings for masculine and feminine.

  在多数语言中，形容词的阳性和阴性的拼法略为不同。

• A positive pregnancy test soon confirmed her intuitive feelings.

  阳性孕检结果很快证实了她的直觉。

• The athlete received a two-year suspension following a positive drug test.

  该运动员因尿检结果呈阳性而被停赛两年。

• I have patients who are HIV-positive and asymptomatic.

  我的一些病人艾滋病病毒检测呈阳性，但却无任何体征。

• The test proved positive.

  试验结果呈阳性.

• The word for " book " is masculine in French.

  book 这个字在法语里是阳性词.

• He was thrown out of the Olympic team after testing positive for drugs.

  他在药检呈阳性后被奥林匹克运动队除名。

• Turn the pot if the plants show signs of bending towards the light.

  如果花草有向阳性，就把花盆转一下。

• He was stripped of his Olympic title after testing positive for anabolic steroids.

  在促蛋白合成类固醇检测呈阳性后，他被取消了奥林匹克冠军头衔。

• He was stripped of his Olympic Hundred Metres gold medal after testing positive for steroids.

  类固醇检测呈阳性后，他的奥运百米金牌被收回。

• Drugs again rained on the Olympics'parade as another athlete tested positive for an illegal substance.

  兴奋剂再次煞了奥运会的风景,又有一名运动员的违禁药物检测结果呈阳性.

• Even innocuous substances can sometimes register a positive result in a drug test.

  即使无害的物质在药物测试中有时也会呈阳性.

• His estimate of half a million HIV positive cases was based on an extrapolation of the known incidence of the virus.

  他估计有50万个HIV阳性病例，这是根据已知的病毒感染率作出的推论。

• The test gave consistently positive results with virulent virus.

  用强毒病毒时,此试验恒定地呈现阳性结果.

• In some cases of nonspecific enteritis positive reactions were observed.

  在一些非特异性肠炎病例中,观察到阳性反应.