| 1. | There is no protection against parapertussis .
对副百日咳现尚无预防方法。 |
| 2. | Prevention of alzheimer s disease is not yet known
阿氏痴呆症并无有有效的预防方法。 |
| 3. | There is no protection against parapertussis
对付百日咳现尚无预防方法。 |
| 4. | Are the following preventive measures effective
这些预防方法有效吗？ |
| 5. | The only means of prevention were crude … and ineffective
唯一的预防方法是粗糙的且无效率。 |
| 6. | 1 . routes of transmission and prevention
1 .传染途径及预防方法 |
| 7. | The best way to reduce the risk is not to smoke or quit smoking
预防方法不吸烟或戒烟是最佳的预防方法。 |
| 8. | Table 2 views and adoption of related preventive health measures
受访者对非典型肺炎预防方法的意见及采用情况 |
| 9. | Infectious diseases and prevention
传染病及预防方法 |
| 10. | Prevention of complications
常见的并发症及预防方法 |
