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【简答题】
如图所示零件,要求保证轴径尺寸φ mm,键槽深度为t= mm 。加工工艺过程如下:1车轴外圆至φ28 mm、上偏差0mm、下偏差-0.10mm ;2铣键槽槽深至尺寸H;3热处理;4磨外圆至 φ28 mm、上偏差+0.024mm、下偏差+0.008mm 。试确定工序尺寸H及其上下偏差;若考虑磨削后与车削后外圆的同轴度允差为φ0.05mm,试计算工序尺寸H及其极限偏差。
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举一反三
【多选题】Which of the following novels are the works of George Orwell?
A.
The Animal Farm
B.
The Power and the Glory
C.
Nineteen Eighty-four
D.
The Lord of the Flies
【多选题】Which of the following novels were written by George Eliot?
A.
Silas Marner
B.
Adam Bede
C.
To the Lighthouse
D.
Middlemarch
【单选题】Most of the novels by George Eliot describe _______ life and deal with _______issues.
A.
city, women’s
B.
country, moral
C.
the workers’, educational
D.
city, moral
【简答题】若信息码组为100011,101101,110110,111000, 用于检错最多能检几位错?用于纠错能纠几位错?
【单选题】Professor Williams teaches English Literature and is a __________ in the novels of George Orwell.
A.
specialist
B.
spohist
C.
professor
D.
scholar
【判断题】洗涤沉淀时,为了防止沉淀溶解损失,可采用稀的沉淀剂或易挥发电解质溶液等洗涤。
A.
正确
B.
错误
【单选题】George Eliot's novels mark the beginning of a new stage in the development of English _______ after Dickens and Thackeray.
A.
romanticism
B.
critical realism
C.
sentimentalism
D.
feminism
【简答题】视频是通过压缩来保存的,压缩包括
【判断题】洗涤沉淀时,为了防止沉淀溶解损失,可采用稀的沉淀剂或易挥发电解质溶液等洗涤
A.
正确
B.
错误
【单选题】The novels of George Eliot mostly deal with ( ) problems and contain psychological studies of the characters.
A.
s ocial
B.
m oral
C.
c ultural
D.
p sychological
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