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【单选题】
当滚刀与被加工齿轮的旋向相反时,滚刀的安装角为( )。
A.
δ=β-γ
B.
δ=β+γ
C.
δ=0
D.
δ =900
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举报参考答案：
举一反三
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】姜黄的产地加工为（）
A.
除去粗皮，用清水漂洗，蒸透，低温(60℃)干燥
B.
除去须根，泥土，蒸或煮至透心，晒干
C.
除去茎叶及须根，洗净晒干或微火烘干
D.
除去须根，去净泥土，切片，晒干
E.
洗净，反复暴晒，堆放至七八成干，除去须根，干燥
相关题目：
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】姜黄的产地加工为（）
A.
除去粗皮，用清水漂洗，蒸透，低温(60℃)干燥
B.
除去须根，泥土，蒸或煮至透心，晒干
C.
除去茎叶及须根，洗净晒干或微火烘干
D.
除去须根，去净泥土，切片，晒干
E.
洗净，反复暴晒，堆放至七八成干，除去须根，干燥
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