二次应力产生的破坏,是在反复加载卸载及多次重复冷热交变作用下引起的疲劳破坏。对这类应

题型:判断题

问题:

二次应力产生的破坏,是在反复加载卸载及多次重复冷热交变作用下引起的疲劳破坏。对这类应力的限定,并不是一个时期的应力水平,而是采用许用应力范围和控制一定的交变循环次数。

考点:土木工程建筑技能考试管道设计规范管道设计规范题库
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Events

Long March exhibit

The Shanghai History Museum is putting on exhibition to remember the Long March(长征) which took place 75 years ago. More than 220 photos and 40 other things are on show. All the exhibition is explained in Chinese. The show will end on November 20.

Time: 10:00 a.m.—4:00 p.m.

Address: 1286 Hongqiao Road

Ticket: 8 yuan for Chinese/15 yuan for foreigners

Thai elephants

Eight elephants from Thailand are an attraction for visitors at Changfeng Park by riding bikes, playing basketball, dancing and blowing a musical instrument. The elephants give three shows a day at 9:30 a.m., 3:30 p.m. and 8:00 p.m. and there is an extra show at 1:30 p.m. at weekends. The show will end on November 15.

Address:189 Daduhe Road

Ticket:30—40 yuan

Dancing dolphins

Dolphins jumping from the water to touch a ball, dancing to music, kissing people and doing easy math problems, and seals and sea lions, also performing, have made a large part of the aquarium(水族馆) in Peace Park, which interests children greatly.

Hours: 10:30 a.m., 4:00 p.m., and 7:30 p.m.

Ticket: 20 yuan for adults and 10 yuan for children.

小题1:Where can one see the Long March exhibition?

A.In Shanghai History Museum.

B.In Changfeng Park.

C.In Peace Park.

D.On 189 Dahude Road.小题2:How many shows do the Thailand elephants give at weekends?

A.One

B.Two

C.Three

D.Four小题3:What may interest children very much in Peace Park?

A.Elephants playing basketball.

B.Dolphins dancing to the music.

C.Seals riding bikes.

D.Sea lions blowing instruments.小题4:How much should a child pay to go into Peace Park?

A.Five yuan.

B.Fifteen yuan.

C.Ten yuan.

D.Twenty yuan.小题5:Which of the following is true?

A.The Long March exhibition is explained in English.

B.The sea animals can work out difficult math problems.

C.Thai elephants’ shows can only be seen in the day.

D.The sea animals perform three times a day.

题型:判断题

肝左右叶的分界标志是()

A.肝右静脉

B.肝中静脉

C.肝左静脉

D.门静脉的横部

E.门静脉的矢状部

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简述计算机的基本组成,分别说明各部分的作用。

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A公司的留存收益相当可观,但有比较高的财务杠杆,股票的市值与公司都正处于成长期,此时若想融资,适合采用的方法有( )。

A.发行债券

B.发行认股权证

C.发行股票

D.留存收益融资

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用罗兹哥特里法测脂肪加入石油醚的作用()

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