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【单选题】
电动汽车冷却液的更换周期根据( )的要求来确定。
A.
维修手册
B.
国家标准
C.
行业标准
D.
地方标准
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举一反三
【单选题】----Will you consider _____ in Shi Jiazhuang? ---- I am always considered ______ in Shi Jiazhuang.
A.
living; to live
B.
living; living
C.
to live; living
D.
to live; to live
【单选题】某股份公司因2000年度出现亏损,董事会提议2000年度暂缓发放优先股股息,待以后盈利年度一并发放。根据上述描述,可知该公司发行的优先股属于( )。
A.
可转换优先股
B.
参与优先股
C.
股息率可调整优先股
D.
累积优先股
【多选题】箱体加工采用“先面后孔”原则,是由于 。For housing machining, planes'machining is performed prior toholes, because 。
A.
符合先粗后精 Rough machinig prior to finish machinig
B.
符合先主后次 Primary surface machining prior to secondary surface
C.
可简化夹具结构 Simplify the structure of the fixtures
D.
有利于加工孔 Be beneficial to machining holes
【多选题】Select the factors that should be considered In the selection of machining method of a surface.
A.
the design and processing features
B.
machining accuracy
C.
workpiece material and heat treatment
D.
available production conditions and technical level in workshop
【单选题】Eletrochemical machining. electrical discharge machining. and laser-beam machining are
A.
common processes
B.
uinconventional processes
C.
traditonal processes
【单选题】yo shi no
A.
ゆしの
B.
やつな
C.
せしの
D.
よしの
【判断题】shi djhd
A.
正确
B.
错误
【单选题】shi
A.
q
B.
w
C.
e
D.
r
【单选题】Which stage of maching is to decrease the surface roughness, and to improve the machining accuracy at the same time?
A.
Finish machining phase
B.
Burnish machining phase
C.
Rough machining phase
D.
Semi-finish machining phase
【多选题】Select principles of arranging machining operations
A.
To machine the finish datum surfaces in advance
B.
To perform rough machining firstly, then finish machining
C.
To arrange major surfaces, then minor surfaces
D.
Machining plane is in advance of hole making
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