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| 41. | But as I know, many grils just like me take the sweet words" real. |
| 大概是我太久没听了，我忘了我的免疫力。 |
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| 42. | Immunodeficiency: Defect in immunity that impairs the Body's ability to resist infection. |
| 免疫不全:免疫力的缺陷削弱身体抵抗感染的能力。 |
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| 43. | To be of service;give assistance. |
| 帮助；有帮助 |
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| 44. | Diphtheria is treated with an antitoxin that neutralizes the toxin and produces long-term immunity. |
| 治疗方式为及时注射白喉抗毒素,产生长期的免疫力。 |
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| 45. | They found that eating a meal increases a type of immune response that fights off the viruses responsible for colds, while fasting seemed to stimulate an immune response that could help fight off the infections associated with most fevers. |
| 他们发现，进食后可以增强人体对感冒病毒的免疫力，而禁食则可以帮助人体战胜伴随发烧产生的病菌感染。 |
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| 46. | Methods Isolation of Rickettsia tsutsugamushi by animal,serology indentification,rest of virulence and immunity. |
| 方法 动物分离 ,血清分型 ,毒力测定及免疫力试验。 |
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| 47. | The act or result of helping; assistance. |
| 帮助帮助的行为或结果；帮助 |
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| 48. | were developing a degree of resistance to this disease, |
| 兔子对这种疾病已产生了一定程度的免疫力， |
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| -- 来源 -- 新概念英语第四册 - A man-made disease |
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| 49. | Older dogs, however, have usually become immune to the parasite. |
| 年纪大一点的狗基本上都会对蛔虫有免疫力。 |
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| 50. | It later became apparent that rabbits were developing a degree of resistance to this disease. |
| 后来，兔子显然对这种疾病产生了一定的免疫力。 |
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