常见的带螺纹的塑件脱模方式有哪些?

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问题:

常见的带螺纹的塑件脱模方式有哪些?

考点:机械工程塑料模具设计塑料模具设计题库
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Writing a good story is no easy task. What’s the secret? Mo Yan, a Nobel Prize winner in literature, believes his success comes from a large amount of reading.

Mo was born into a farming family in a village in Shandong province. He grew up listening to folk (民间的) stories about gods, spirits and foxes. Those stories later became the inspiration(灵感) for Mo’s writing.

Mo left school at the age of 12 and started to work in the fields. Although he was tired after his daily hard work, Mo was always hungry for books. However, there were very few in the village. He read his elder brother’s textbooks and even dictionaries. He helped others with farm work in exchange for books.

After Mo left his hometown and joined the army in 1976, he began to read widely, including works by Lu Xun and many other famous writers.

He studied from these writers but did not copy them. Instead, he developed his own style. “I grew up in an environment filled with folk culture. It enters my novels whenever I pick up a pen. This has affected, even decided, my style.” Mo told a group of reporters in his hometown shortly after he won the award in 2012.

As the first Chinese citizen to win a Nobel Prize in literature, the organization spoke highly of his works. They described his writing as a mixture of fantasy and reality, combining historical and social perspectives (看法).

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婴儿腹泻伴低钾血症时下列哪一项不正确

A.腹泻时排钾过多致低钾

B.酸中毒时血钾更低

C.血钾低于3.5mmol/L时出现低钾症状

D.补液后钾从尿中排出增加

E.补液后血钾较补液前相对较低

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()缺陷属于轧制造成的。

A、偏析

B、疏松

C、折叠

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医务社会工作以服务对象的健康为主导的特点主要表现为( )。

A.医务社会工作者是医疗卫生服务系统中的一员,他秉承社会工作的理念,在医疗卫生系统中开展社会工作服务,与医疗卫生系统的服务融为一体

B.医务社会工作服务的对象主要是受到疾病困扰的相关人员

C.医务社会工作的服务与现代医学模式的转变有着紧密联系,医学模式由“以疾病为中心”转向“以病人为中心”

D.在医疗卫生系统从事社会工作必须了解、熟知各种相应的医疗规范,并且形成与此医疗规范相适应、相配合的服务规范

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在以下表述中,企业内部信息不对称引起管理成本的提高主要表现在()

A.增加了代理成本

B.增加了定价成本

C.增加了监督成本

D.增加了总成本

E.增加了激励约束成本

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