_百度作业帮 地栖性走禽:孤(共鸟)[共鸟]有一科(Tinamidae)46种,是古颚总目中种类最多的,也是人们最不熟悉的.[共鸟]同时具有平胸类和突胸类的特点,能做短距离的飞翔.
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山顶上有一科古松 Hill branch of ancient pines
所有科目一共 All subjects were ; Total of all subjects
一门有趣的科目 An interesting subject ; One interesting subjects
源一科技有限公司 Source Technology Limited
只有一个安迪科尔 There's only one Andy Cole
英语是一门有趣的科目 English is an interesting subject
中有一名名叫里科弗 Hyman G Rickover
其中有一位名叫里科弗 Hyman G Rickover
“因此,他们会接受他的主要前提:“最主要的单一科学问题 - 对我们的社会来说,一个生死攸关的问题 - 是海洋上升的程度有多大,速度有多快...
So they will accept his main premise: "The greatest single scientific question —and for our society, a question of life or death —is how far and how fast the seas will rise ...
知识有两种:我们通晓某一学科,或者我们知道到哪里去寻找有关某一科目的知识。
Knowledge is of two kinds:we know a subject ourselves, or we know where we can find information upon it.
也许将来有一天,某一科学家发明了一种使海水淡化的比较经济的方法。
Perhaps a scientist will one day invent a cheaper way of producing fresh water from the sea.
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