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科学家不知道恐龙为何灭绝，但是一些理论假设地形，气候，海平面的变化将对此负责。
Scientists do not know why dinosaurs became extinct,but some theories postulate that changers in geography,climate,and sea levels were responsible.
园艺学利用其他学科的信息最大化收益和提高质量。
The science of horticulture, in which the primary concerns are maximum yield and superior quality  ,utilizes information deriverd from other sciences.
雪帮助农民保持了地表热量，因此保护种子远离寒冷。
Snow aids farmers by keeping heat in the low ground levels,thereby saving the seeds from freezing.

科学家们至今还不清楚为何恐龙会灭绝，但是一些理论假定地理，气候，海面等因素的变化导致了恐龙的灭绝。
园艺科学利用了其他科学的信息，主要关注的是产量的最大化和极高的质量。
雪保持了较低的水平面的热量而帮助了农民们，从而保护了农作物种子免于冻坏。
Scientists do not know why dinosaurs became extinct,but some theories postulate that the changers in geography,climate,sea levels were responsible.
The science of horticulture,in which primary concerns are maxmium yield and superior quality,utilizes the information derived from other sciences.
Snow aids farmers by keeping heat in the lower ground levels,thereby saving the seeds from freezing.

1. Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible.
1.科学家们不知道为什么恐龙会灭绝,但是有些人提出了恐龙的灭绝和地理,气候和海平面面的变化有直接联系的理论.
2. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes inFORMation derived from other sciences.
2.园艺学,是一门关注最大领域和更高的质量,利用别的学科的派生知识的学科.
3.Snow aids farmers by keeping heat in the lower ground levels, thereby saving the seeds from freezing.
3.雪通过在地平线下加热,然后冷冻来帮助农民保存种籽.

1.Scientists do not know why dinosaurs became extinct,bue some theories postulate that changers in geography,climate,and sea levels were responsible.
科学家们不知道恐龙为什么灭绝，但是一些理论的假定，如地理条件、气候、和海水的变化是负有责任的。

2.The science of horticulture,in which the primary concerns are macimum yield and superior quality,utilizes inFORMation derives from other sciences.
园艺科学主要是涉及最大产出和最好质量，充分利用从其他科学中获取的信息。

3.Snow aids farmers by keeping heat in the lower ground levels,thereby saving the seeds from freezing.
雪帮助农民保持低洼土地的热量，因此避免了种子被冰冻。

问题： 第二句子中的复句关系不是很好懂，尤其是concerns，are，utilizes，不是很知道修饰那些词活句子？？？

1.科学家们不知道恐龙为什么灭绝，但是一些假定的理论说明这与地理变化，气候，和海拔是有关系的。
2.园艺科学，利用其它科学信息提高产量和质量是最主要的。
3.雪能帮助弄明保持地准平面的热量，因此拯救种子在严冬不被冻坏。

1.Scientists don\'t konw why dinosaurs distinct ,but some theories postulate that changes in geography,climate,and sea levels were responsible.
2.The science of horticulture ,in which the primery concerns are maximum yield and superior quality,unilizes the information derives from other sciences.
3.Snow aids farmers by keeping heart in the lower grouns levels,thereby saving the seeds from freeing.

1. Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible.

1.科学家不知道为什么恐龙灭绝了，但是一些理论假定地理、气候和海平面的变化与此有关。

2. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes information derived from other sciences.

2.园艺学，其主要目的是充分使用田地和优化质量，利用了其他科学派生的信息。

3. Snow aids farmers by keeping heart in the lower ground levels, thereby saving the seeds from freezing.

3.雪通过保持底层地面温度，使种子不被冻坏来帮助农民。

Scientists  do  not  know  why   dinosars  became  exint,  but  some  theories  postulate  that  changers  in  geography  ,climit  and  
sea  levels  are  relibretry
科学家不知道恐龙是怎么灭绝的，但是有些理论假设说，地质，气候和海平面的变化对恐龙的灭绝起主要作用

Sciense  of   homiculture  ,  in which  primary  concerns  became  maximum  yeild  and  superior  qulity,utilizes    information  delived   
from  other   scienses
园艺科学最关注的是植物最大化的产量和最优化的质量以及利用来自其他科学的信息

Snow  aids  farmers  preserves  heat  in  the lower   levels,  such  avoid    the  seeds  from   freening
由于雪能帮助农民在地面深层替庄稼保存热量，也就避免了种子被冻坏

1、Scientists do not know why dinosaurs became extinct ,but some theories postulate that changers in geography,climate, and sea levels were responsible.
科学家不知道恐龙为什么会消失，但是一些学说理论推理由于地理、气候和海平面变化的影响。
2、The science of horticulture, in which the primary concerns are maximu yield and superior quality,utilizes information derived from other sciences.
园艺学，首要涉及到的是最大产量和最优质量，利用的这些信息是起源与其它学科。
3、Snow aids famers by keeping heat in the lower ground levels ,thereby saving the seeds freezing.
降雪帮助农民能够使地下的种子保持一定稳定，免与冻坏。

1.Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible.
科学家们不知道为什么恐龙灭绝.但是一些科学家们认为在地理,气候.和海平面的这结\\些变化是责任重大的.
2. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes inFORMation derived from other sciences.
园艺方面的科学家所关注的是利用信息从别的科学家那里派生出来的最高的的投资收益和上好的质量..
3.Snow aids farmers by keeping heat in the lower ground levels, thereby saving the seeds from freezing. .
雪有助于使农民在较低的士地水平上保持热度.从而从冰冻中把种子拯救过来.
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1. Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible.

科学家无法解释恐龙为何会灭绝，不过一些观点认为地理环境、气候和海平面的变化是主要原因。

2. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes inFORMation derived from other sciences.

园艺学吸取了许多其他学科的经验，用于达到其最为关注的收益最大化及品质最优化。

3.Snow aids farmers by keeping heat in the lower ground levels, thereby saving the seeds from freezing.

大雪对于农民来说是有益的，它所覆盖的地表下的热量不易流失，避免种子被冰冻。


今天来晚了 公司网络有问题
貌似答案的第二句念起来有点点晕。。。少了点中国风
主要目的在于丰富和优质的农艺学利用了其他科学的知识。

[ 本帖最后由 在职ING 于 2008-6-18 13:24 编辑 ]