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【单选题】
关于用仿形法加工齿轮,下列说法正确的是
A.
采用专用插齿、滚齿和磨齿机床
B.
加工不连续，精度和效率较低
C.
加工是连续的，精度和效率较高
D.
适用于批量和精度要求高的场合
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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
参考解析：
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