| 1. | Sensory nerve endings are present in the teat .
感觉神经末梢是在乳头上。 |
| 2. | Viruses may be present in tapwater .
病毒可以存在于自来水中。 |
| 3. | Mitochondria are present in all eukaryotic cells .
一切真核的细胞都有线粒体。 |
| 4. | Repeated sequences are often present in the genome .
基因组内常常有重复性序列。 |
| 5. | All organisms have nucleic acids present in their cells .
所有生物的细胞中都有核酸。 |
| 6. | Several reducible ions are present in the solution .
溶液中同时存在几种可还原的离子。 |
| 7. | He is at present in shanghai .
目前他正在上海。 |
| 8. | Tremolite laths and serpentine minerals are present in places .
有的地方出现透闪石板条及蛇纹石。 |
| 9. | The u.s.constitution was presented in a positive light .
对于美国宪法，是用肯定的态度予以介绍的。 |
| 10. | After cancellation, the factor is still present in the denominator .
相消后该因子仍存在于分母中。 |
