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赶作业赶作业~
Speed
1. 00'01'51
A research shows that mass extinction does not provide opportunities for marginalized creature torise to power.
2. 00'02'39
There is no need to clean ears, which have their own cleaning mechanism. But numerous people spend money to clean
ears, which is not only unnecessary but also dangerous.
3. 00'02'23
Reseachers recently began to design and build a protein that can make itself fold into tetrahedron, which for protein
is very late. If succeed, protein will have practical uses in many areas.
4. 00'01'26
Researchers linked 12 helices in a chain, which is thought as rather difficult. Also it's interesting because there are many
kinds of composition. It will has some practical use.
5. 00''03'17
Ya'an earthquake is a result of stress release in southern Longmenshan fault. But other scientists argue strain energy is
should be the measure.
Obstacle
6.00'06'06
MI: The research of plots at Tumamoc Hill represents world's longest study of individual plant
>>>The plots date back from 1906, recording the life cycle of individual plant their periodically.
>>>The achive is especially valuable, providing scientists today with infromation to estimate one plant's life span and
key advances in the ecology.
>>>9 plots have remained till today with new ones added, recording every detail of the species.
>>>Challenge is great:
>>Task is enduring and needs more people.
>> The method of collecting and recording infromation has change digitally, instead of paper note used before computer emerges
Sicentists now use advanced approach to record information from plots. |
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