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【单选题】
根据轮系运转时各齿轮的固定轴线在空间的相对位置是否固定,轮系可分定轴轮系和()两类A.
活动轮系
B.
固定轮系
C.
单一轮系
D.
周转轮系
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举一反三
【简答题】Complete the text with the best words. The way of the wiki In the Hawaiianlanguage, wiki means ‘quick’. Wikipedia was _1_ by Jimmy Wales and Larry Sanger as a free online encyclopedia written by anybo...
【单选题】That the author mention the old roman is
A.
To compare the old Romans with today' s people.
B.
to give an example.
C.
to show human beings in the past know nothing better.
D.
to indicate human beings are used to bloodthirsty.
【简答题】阅读理解。 It was Jimmy's birthday and he was five years old. He got a lot of nice birthday presents from his family, and one of them was a beautiful drum. 'Who gave him that thing? 'Jimmy's father said wh...
【简答题】C. Complete the text with the best words. The way of the wiki In the Hawaiian language, wiki means ‘quick’. Wikipedia was 1 by Jimmy Wales and Larry Sanger as a free online encyclopedia written by any...
【简答题】开式齿轮传动的主要失效形式是（），闭式软齿面齿轮传动的主要失效形式是（），闭式硬齿面齿轮传动的主要失效形式是（）。
【简答题】I cut one of my ________ (finger) when I was cooking. 2 . “You are old enough and you should learn to be ________(dependent) , dear , ”my mother said to me. 3. Would you mind _____(take) out the trash...
【简答题】It was Jimmy's birthday, and he was five years old. He got quite a lot of nice birthday presents from his family, and one of them was a beautiful big drum(鼓). 'Who gave him that thing?' Jimmy's father...
【单选题】What is the relation of memory to glucose tolerance, as is indicated by a research mentioned in paragraph 4 ?
A.
People with poor memory have high glucose tolerance.
B.
People with good memory have low glucose tolerance.
C.
Memory level has nothing to do with glucose tolerance.
D.
The poorer the memory, the poorer glucose tolerance.
【简答题】There is one point which is worth ( ) (mention).
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