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毛坯:Φ50×80mm棒料 要求:分析其数控车削加工工艺
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皮皮学刷刷变学霸
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【简答题】Pressure to abandon a language in favor of a more dominant one has historically been direct and forceful. In 19th-century Australia and the United States, native children were sent to boarding schools...
【简答题】冲压模具高度H模与压力机的最大闭合高度Hmax和最小闭合高度Hmin的关系是()。
【单选题】For many years, no one could communicate with people who had been born without hearing. These deaf people were not able to use a spoken language. But ,beginning in the 170Os,the deaf were taught a spe...
A.
to speak
B.
sign language
C.
to watch others
D.
Braille
【单选题】若 H 是冲模的闭合高度,垫板高度为零, Hmax 和 Hmin 分别是压力机的最大和最小装模高度,设计模具时应考虑满足( )。
A.
Hmax≥H≥Hmin
B.
Hmax － 5≥H≥Hmin ＋ 10
C.
Hmax － 10≥H≥Hmin ＋ 5
D.
Hmax ＋ 5≥H≥Hmin － 10
【单选题】世界顶级设计咨询公司IDEO公式的汤姆.凯利将具备推动企业创新能力的人才分为10种，下列哪种人才属于建设性角色？
A.
人类科学家
B.
布景师
C.
实验师
D.
导演
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