您要查找的是不是:
- Pigs are flu sponges, capable of contracting both bird and human viruses that can jump across the species barrier, Richt says. 里希特说,猪是流感海绵,能够跨跃物种界线吸取人类和禽类的流感病毒。
- Population growth also puts people in close proximity to domestic animals, creating evolutionary pressures and opportunities for pathogens to jump the species barrier. 人口增长还导致人们与家禽比邻而居,造成了病原体跨越种属屏障的进化压力和机会。
- Scientists we talked to say there may be great benefits, but that moving genes across the species barrier is a step into the unknown and we should proceed carefully. 科学家认为基因嫁接可能会带来很大的好处,但是跨物种的基因移植将此带入了未知世界,我们应当谨慎地向前。
- Although A (H1N1) influenza viruses are normally species specific and only infect pigs, they do sometimes cross the species barrier to cause disease in humans. 虽然在一般情况下,甲型H1N1流感病毒只在猪身上传播,但在特定情况下也会交叉传染,导致人感染上此种病毒。
- Prions are not readily transmittable from species to species, but once they have broken through the species barrier they can rapidly adapt and become contagious within the species. 朊病毒是不容易传递,从种到种,但一旦他们突破了物种障碍,他们可以迅速适应,并成为传染内部的物种。
- Although natural hosts are birds, the avian influenza viruses are known to cross species barriers to infect other mammals, including humans. 尽管鸟类是自然宿主,但禽流感病毒能够跨物种感染其它哺乳动物包括人类。
- Poor health may be a barrier to success. 健康欠佳可能成为取得成功的障碍。
- The horse took the barrier easily. 那匹马轻松地越过了障碍。
- He have get over the language barrier. 他已克服了语言障碍。
- Do wolves belong to the canine species? 狼是犬科动物吗?
- A large crowd crushed past (the barrier). 大群的人挤过了(障碍物).
- The crowd linked arms to form a barrier. 群众臂挽著臂组成人墙。
- They soon overcame the language barrier. 不久他们便克服了语言上的障碍。
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- The ice skater rammed into the barrier. 溜冰者撞到护栏上了。
- The lorry shaved the barrier, scraping its side. 那辆卡车掠过路障,刮坏了车身。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- A floating barrier serving to contain an oil spill. 浮木档栅一种漂浮的档栅,用来阻止流失的油份
- The government has lift trade barrier on foreign car. 政府已解除了对进口小气车的贸易壁垒。