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【简答题】
一些机器在起动和停车避免产生过大的动应力和振动影响工作寿命,控制上采用 ( )自然/紧急等多种停车方式。
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参考答案:
举一反三
【简答题】2 请在考生文件夹下完成如下操作: (1)在考生文件夹下建立“WORD文档”文件夹; (2)在考生文件夹下查找“文件操作.doc”文件,将它复制到“WORD文档”文件夹中。
【简答题】A.She is busier than the man. B.She is not as busy as the man. C.She is unable to help the man. D.She is lucky not to work with the man.
【单选题】在夫琅禾费单缝衍射实验中,对于给定的入射单色光,当缝宽度变小时,除中央亮纹的中心位置不变外,各级衍射条纹
A.
对应的衍射角变小
B.
对应的衍射角变大
C.
对应的衍射角也不变
D.
光强也不变
【单选题】Which of the following statements is INCORRECT about Miss Chan?
A.
She is older than most undergraduate students.
B.
She majors in French and minors in Marketing.
C.
She has work experience before entering the university.
D.
She succeeds in shortening the academic years.
【单选题】She had to undergo psychiatric treatment as she was mentally ______.
A.
unsafe
B.
unstable
C.
unsteady
D.
unfixed
【单选题】工字钢截面尺寸如图所示,则此截面的几何中心坐标xc为( )。【图片】
A.
110
B.
100
C.
90
D.
80
【单选题】( )组词是区别词
A.
副、简单、金子、女
B.
大型、中型、中级、低级
C.
民用、国产、特等、初等
D.
男、银子、初级、正
【单选题】听力原文:W: Louise speaks English as if she were an American. M: Her family lived in the United States until Louise was 12 Years old. She has never forgotten her English. Q: Why can Louise speak English w...
A.
Her family speaks English.
B.
She spent her early years in America.
C.
She has a good memory and won't forget her English.
D.
She is an American native.
【单选题】She used to call me' Tiny,'______I was at least as tall as she was.
A.
although
B.
because
C.
unless
D.
if
【单选题】工字钢截面尺寸如图所示,则此截面的几何中心坐标xc为【图片】
A.
120
B.
110
C.
100
D.
90
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