以下关于边缘整塑的描述正确的是（） A.边缘整塑是为了使义齿有良好的边缘封闭 B.边

天然自身免疫耐受正确的概念是

A．机体对任何抗原都不发生免疫应答

B．机体对改变的自身组织成分不发生免疫应答

C．机体对自身组织成分不发生免疫应答

D．机体对非已抗原都不发生免疫应答

E．机体对释放隐蔽抗原不发生免疫应答

【案例4】(本小题17分)　　2009年3月1日，甲房地产公司(简称甲公司)与乙建筑公司(简称乙公司)签订一份建筑工程承包合同，约定由乙公司承建甲公司开发的景明写字 楼项目，工程价款5000万元，工期14个月。工程将要竣工时，甲公司因资金短缺，无力继续提供约定由其提供的部分建筑材料。鉴于双方的长期合作关系，乙 公司遂以自有资金500万元购买部分建筑材料用于该工程，工程如期完成。对于乙公司的垫资，双方未作任何约定。工程竣工验收后，甲公司支付了3000万元 工程款，剩余2000万元工程款及乙公司垫付的500万元建筑材料款尚未支付。　　2010年6月22日，甲公司为投资其他房地产项目，以景明写字楼作抵押，向丙银行借款2、5亿元，同时办理了抵押登记。该借款到期后，甲公司因资金周转困难，未能全部偿还，尚欠丙银行借款本息2亿元。　　2010年，乙公司开始涉足房地产开发业务，并于7月12日以2、3亿元的价格，从丁房地产公司(简称丁公司)处受让一块建设用地使用权，用于 建设西山公寓住宅项目。乙公司在取得该块土地使用权时，向丁公司支付了1、3亿元土地转让金。根据双方约定，剩余1亿元转让金应于2011年5月31日前 支付完毕。同时，甲公司以景明写字楼作抵押，为乙公司所欠丁公司的1亿元土地转让金提供担保，双方亦办理了抵押登记。　　西山公寓项目竣工后，因市场低迷而滞销。为缓解困境，乙公司于2011年6月8日，以西山公寓作抵押，从戊银行处获得一笔借款，并办理了抵押登记。双方约定，一旦乙公司连续3个月不能偿还借款利息，戊银行即可行使抵押权。　　2011年10月29日，吴某以110万元的价格购买了西山公寓住房一套，并一次性付清了房款。但乙公司未将该房屋已设定抵押的事实告知吴某。　　甲公司因不能清偿到期债务，于2011年12月27日被人民法院裁定进入破产程序。在申报破产债权时，乙公司就其2000万元的工程余款和 500万元的垫资款、丙银行就甲公司尚未偿还的2亿元借款本息、丁公司就其1亿元土地转让金，均主张以景明写字楼拍卖所得价款全额优先受偿。景明写字楼拍 卖所得价款为2、7亿元。　　鉴于乙公司停止偿还借款利息已超过3个月，2012年3月20日，戊银行行使对西山公寓的抵押权，申请人民法院拍卖西山公寓。至此，吴某方知其 所购商品房已被设定抵押，遂主张解除房屋买卖合同，要求乙公司返还110万元购房款并赔偿损失，此外，还要求乙公司另行支付110万元惩罚性赔偿金。　　要求：

甲公司所欠乙公司的2000万元工程余款能否从景明写字楼拍卖所得价款中全额优先受偿并说明理由。

系统性红斑狼疮最常受累的脏器是（）。

A.肺脏

B.肾脏

C.心脏

D.胃肠道

E.神经系统

杂散

In most aspects of medieval life, the closed corporation prevailed. But compared to modern life, the medieval urban family was a very open unit: for it included, as part of the normal household, not only relatives by blood but a group of industrial workers as well as domestics whose relation was that of secondary members of family. This held for all classes, for young men from the upper classes got their knowledge of the world by serving as waiting men in a noble family: what they observed and overheard at mealtime was part of their education. Apprentices lived as members of the master craftsman’s family. If marriage was perhaps deferred longer for men than today, the advantages of home life were not entirely lacking, even for the bachelor.
The workshop was a family; likewise the merchant’s counting house. The members ate together at the same table, worked in the same rooms, slept in the same or common hall, converted at night into dormitories, joined in the family prayers, participated in the common amusements.
The intimate unity of domesticity and labour dictated the major arrangement within the medieval dwelling-house itself. Houses were usually built in continuous rows around the perimeter of their gardens. Freestanding houses, unduly exposed to the elements, wasteful of the land on each side, harder to heat, were relatively scarce: even farmhouses would be part of a solid block that included the stables, barns and granaries. The materials for the houses came out of the local soil, and they varied with the region. Houses in the continuous row forming the closed perimeter of a block, with guarded access on the ground floor, served as a domestic wall: a genuine protection against felonious entry in troubled times.
The earliest houses would have small window openings, with shutters to keep out the weather; then later, permanent windows of oiled cloth, paper and eventually glass. In the fifteenth century, glass, hitherto so costly it was used only for public buildings, became more frequent, at first only in the upper part of the window. A typical sixteenth-century window would have been divided into three panels: the uppermost panel, fixed, would be of diamond-parted glass; the next two panels would have shutters that opened inwards; thus the amount of exposure to sunlight and air could be controlled, yet on inclement days, both sets of shutters could be closed, without altogether shutting out our light. On any consideration of hygiene and ventilation this type of window was superior to the all-glass window that succeeded it, since glass excludes the bactericidal ultra-violet rays.

According to the writer, why were there few free-standing houses

A. Building land Was expensive.
B. Such houses were costly to construct.
C. Such houses suffered the effects of bad weather.
D. There was no room left for a garden.