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计算题:有一正方体铸铁件,边长为1.6m,高为0.2m,中间穿一直径为0.3m一个圆

题型:问答题 简答题

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计算题:有一正方体铸铁件,边长为1.6m,高为0.2m,中间穿一直径为0.3m一个圆孔,试求其重多少t?(铸铁的密度为7.5tm3

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参考答案:凤凰城

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题型:完形填空

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Boys do bad at school

Despite education reforms and more than enough money, more and more boys have been dropping out of high schools in the United Arab Emirates  (阿拉伯联合酋长国 )  for the past few years.  小题1:_They often choose jobs in public services. the army or the police force instead. As a result. only 30% of the universities are made up of male students. Such a condition has also put them at an obvious disadvantage.  小题2:   In such an oil-rich country. families are so wealthy that their children do not need to study hard. Boys often come to school with personal helpers who carry their suitcases for them and help them with their homework. They rely on them to do everything they would otherwise have to do themselves_小题3:_

Public schools usually get enough money from the government.   小题4:  The rest go to private schools where teachers are more interested in pushing children towards a higher education. In public schools. motivation is low and students seem uninterested in learning. Experts agree that teacher training throughout the Emirates needs to be improved.

 小题5:  0ne of them is the population's widespread thinking that the government will always supply young citizens with jobs. Authorities are convinced that just pouring money into the school system won't achieve the desired results. Their aim is to have more Emirati males finish high school and continue to go to university, where they will get degrees and have a bright future.

A. But what comes after oil runs out in the country?.

B. Boys and girls are often separated in public schools.

C. Few women will marry a man with lower education.

D. However. only 40% of all children attend these schools.E.  The Emirati people have been living on the land for centuries.

F.  Many mistakes have actually been made in the past few years.

G.   Currently about 25% of boys in the country do not finish high school

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题型:单项选择题 共用题干题

患者男,53岁,左臀部皮下发现孤立性肿块3年,肿块直径约3.5cm。大体检查:肿瘤卵圆形,边界清楚,似有纤维性包膜,质硬,切面呈灰白色石灰样。

光镜下:肿瘤周边可见骨小梁,肿瘤由多个细胞密度不均的小叶组成,瘤细胞呈短条束状、网格状排列,瘤细胞间见胶原纤维,部分似骨样组织,可见黏液样基质,核分裂象少见。最可能的诊断是()

A.孤立性纤维源性肿瘤

B.软组织骨化性纤维黏液样肿瘤

C.骨化性肌炎

D.软组织骨肉瘤

E.硬化性上皮样纤维肉瘤

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题型:问答题 案例分析题

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