计算弯曲件展开长度的一般步骤有哪些?

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问题:

计算弯曲件展开长度的一般步骤有哪些?

考点:机械设计基础机械设计基础题库
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下图是与人类生活关系密切的四种生物,请分析回答:(6分)

(1)试写出图中甲、乙所示生物的名称:          、          

(2)若以生殖方式为分类标准,图中乙应和         划分为一类,因为它们都是通过产生类似于图中代码     所示的结构来繁殖后代的。

(3)丙是与人类生活密切相关的一种生物,它可广泛应用于酿酒和食品制作,主要原因是它能够把葡萄糖转化为                            

(4)某同学想在自家大棚中“种植”生物丁。为此,他做了充分的准备,使大棚内具备了适宜的温度、较高的湿度,同时还在大棚内安装了许多日光灯,保证了大棚内昼夜有较强的光照。该同学的做法有无不妥之处?请分析说明:                                 

                                                                

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合同自由的重要体现是( )。

A.合同形式由当事人选择

B.合同的要式原则

C.合同成立前可无书面形式

D.合同的内容由当事人约定

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Part 4


Questions 26-45


·Read the following text and decide which answer best fits each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.

Speaking Her Hind


By the time they turn 55, most Hollywood actresses see their careers start to fade. Not (26) for Susan Sarandon, who will help kick offthe fall movie season with three films.
(27) of the movies are likely to be blockbusters, but Sarandon chooses her (28) more for the stories they tell (29) for their commercial potential. "If we’re very lucky, these films will (30) questions that people will talk about," she says.
She’s done her own share of questioning, and arrived at a place in life (31) she’s not afraid to stand (32) her convictions—and then follow (33) with action. The eldest of nine children in a New Jersey Roman Catholic family, she stumbled into an acting (34) when she attended an audition with her ex-husband, Chris Sarandon. Twenty-five years and five Oscar nominations later, she (35) a Best Actress Academy Award for her role as Sister Helen Prejean in 1995’s Dead Man Waling, a searing film about capital punishment.
By (36) Sarandon was practiced at using her celebrity to (37) causes close to her heart. (38) , while presenting an award at the 1993 Oscars, she and longtime partner Tim Robbins, an actor and director, took 30 seconds of their podium time to speak on (39) of Haitian refugees with AIDS. "At the (40) of acting and activism is imagination," Sarandon says. "I’ve (41) had the ability to imagine being in someone else’s shoes."
She is a supporter of end-hunger and poverty (42) including Heifer International, Madre, and Habitat for Humanity, as (43) as the Center for Constitutional Rights. In the aftermath of September 11, she cooked for workers at Ground Zero, did benefit performances, and befriended firefighters and victims’ families.
Sarandon is (44) hands-on in the role she calls her (45) important—mother of three children.

A.timely

B.always

C.seldom

D.never

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伽马刀治疗的主要优点是()。

A.无手术创伤

B.对病灶周围正常组织损伤小

C.治疗疗程较短

D.价格便宜

E.以上都不是

题型:问答题 简答题

Wilson病是指()

A.多发性硬化

B.肝豆状核变性

C.结节性硬化

D.同型胱氨酸尿症

E.硬皮病

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