| 1. | The targets are irradiated for about one year .
靶核大约要辐照一年。 |
| 2. | A nucleus can have only one y-chromosome .
一个核可以仅有一个Y染色体。 |
| 3. | An atom contains a tiny heavy nucleus .
一个原子含有一个微小而重的核。 |
| 4. | These cells had retained a diploid karyotype .
这些细胞持有二倍体核型。 |
| 5. | The polymorphonuclear leukocytes predominate .
多核白细胞占优势。 |
| 6. | The earth is believed to have a liquid core .
人们相信地球有一个液态核。 |
| 7. | The nucleoplasm is surrounded by the nuclear envelope .
核质被核膜包裹。 |
| 8. | Mitochondria are present in all eukaryotic cells .
一切真核的细胞都有线粒体。 |
| 9. | She took a firm stand on nuclear disarmament .
她在核裁军的问题上态度很坚决。 |
| 10. | It can be modified by nuclear restorer genes .
它可由核中的恢复子基因所改变。 |
