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【单选题】
要使脉冲放电能够用于尺寸加工时,必须满足的条件是( )说工具电极和工件表面之间放电间隙尽量小;说脉冲放电具有脉冲性、间歇性;学说要持续不间断的放电;说在导电性良好的液体介质中进行。哪位同学回答正确?A.
正确
B.
正确
C.
正确
D.
正确
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举一反三
【简答题】Which sentence is the topic sentence in Paragraph 6?
【简答题】Which sentence is the topic sentence in Paragraph 3?
【单选题】Which sentence is better in the interview?
A.
The requirement of the company is that employees be engaged in their respective duties seven and one-half hours a day.
B.
The company requires employees to work seven and a half hours a day.
【单选题】Which sentence is better in the interview?
A.
The requirement of the company is that employees be engaged in their respective duties seven and one-half hours a day.
B.
The company requires employees to work seven and a half hours a day.
【单选题】In which sentence is the thesis of the essay presented?
A.
Third sentence
B.
Fourth sentence
【单选题】Intonation identification: In which sentence is the speaker sure and expects the other person to agree with him?
A.
Laura is an English teacher, isn't she?( 升 调 )
B.
Laura is very beautiful today, isn't she?( 降 调 )
【单选题】Intonation identification: In which sentence is the speaker not sure about something and wants to confirm it? and in which is he sure and expects the other person to agree with him?
A.
Laura is an English teacher, isn't she?(升调)
B.
Laura is very beautiful today, isn't she?(降调)
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