| 1. | It is possible to multiply bacteria and other living organisms in the laboratory. |
| 在实验室能够繁殖细菌和其他生物。
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| 2. | The laboratory animals had been infected with the bacteria . |
| 实验室的动物都已受到这种细菌的感染。
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| 3. | The soil has to be purified of all bacteria . |
| 要消灭这土壤的所有细菌使之净化。
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| 4. | Most bacteria grow best in slightly acid medium. |
| 大多数细菌在略带酸性的生活条件下最易繁殖。
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| 5. | It is effectively protected against the attacks of bacteria . |
| 它受到免遭细菌袭击的有效保护。
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| 6. | The life forms most likely to develop on a planet would be bacteria . |
| 行星上最容易生存下来的是细菌。
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| 7. | It is bacteria that have generated the oxygen we breathe on earth. |
| 正是细菌生产出我们在地球上呼吸的氧气。
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| 8. | If we were able to discover lowly forms of life like bacteria on another planet, it would completely change our view of ourselves. |
| 如果我们能够在另一颗行星上找到诸如细菌的那种低等生命，那么这个发现将彻底改变我们对我们自己的看法。
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| 9. | Many diseases are caused by bacteria . |
| 许多疾病是由细菌引起的。
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| 10. | The biology of bacteria can be quite hard to understand. |
| 细菌生物学有时会很难理解。
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