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【简答题】
编制工艺规程时,为什么要划分加工阶段?在什么情况下可以不划分加工阶段?
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反馈参考答案：
举一反三
【单选题】The teacher told his students that the earth _____ round the sun. [ ]
A.
go
B.
went
C.
goes
D.
had gone
【单选题】The teacher told his class that the light ___ faster than the sound.
A.
travel
B.
traveled
C.
travels
【单选题】The teacher told his students that the earth around the sun.
A.
went
B.
will go
C.
goes
D.
go
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