遗传性出血病的治疗，一般的止血药物无效，凝血因子制剂的替代治疗可以起到显著的疗效。

XI3因子缺乏症首选的制剂是

A:基因重组的凝血因子Ⅷ B:基因重组的凝血因子Ⅸ C:凝血酶原复合物 D:纤维蛋白原 E:冷沉淀

血浆蝰蛇毒时间(RVVT)正常，血浆PT延长，提示

A:因子Ⅶ缺乏 B:因子Ⅹ缺乏 C:因子Ⅶ和Ⅴ缺乏 D:因子Ⅶ和Ⅹ缺乏 E:TF缺乏

Tales of the Terrible Past

    It is not the job of fiction writers to analyze and interpret history. Yet by writing about the past in a vivid and compelling manner，storytellers can bring earlier eras to life and force readers to consider them seriously. ¹Among those taking on the task of recounting history are some black writers who attempt to examine slavery from different points of view.

    Nobel Prize-winning author Toni Morrison deals specifically with the legacy of slavery in her book Beloved. The main character in this novel，a former slave called Sethe，lives in Ohio in the years following the Civil War，but she cannot free herself from her horrific memories. Through a series of flashbacks and bitter reminiscences，the reader learns how and why Sethe escaped from the plantation she had lived on; the fate of her husband，who also tried to escape; and finally，what happened to the child called Beloved. Morrisons scenes of torture and murder are vivid and strongly convey the desperation of the slaves and the cruelty of their owners.

    Charles Johnsons Middle Passage approaches slavery from a different，yet no less violent，vantage point. His main character，Rutherfprd Calhoun，is a ne’er-do-well free black American who stows away on a slave ship bound for Africa to collect its "cargo" ². Put to work after he is discovered，Calhoun witnesses firsthand the appalling conditions in which the captured Africans are transported. When they finally rebel and take over the ship，he finds himself in the middle -- and is forced to come to terms with who he is and what his values are.

Neither Beloved nor Middle Passage is an easy read，but both exemplify African American writers attempts to bring significant historical situations alive for a modem audience.

词汇:

interpret [ɪn"tɜ:prɪt] v. 解释，翻译

desperation [ˌdespəˈreɪʃn] n. 绝望的境地

recount [rɪ"kaʊnt] v. 叙述

capture ["kæptʃə(r)] v. 俘获

slavery [ˈsleɪvəri] n. 奴隶制度

注释:

1. Yet by writing about the past in a vivid and compelling manner，storytellers can bring earlier eras to life and force readers to consider them seriously. 然而通过用一种生动有趣的方式来描写过去，小说家可以将早期时代重现，并引起读者的重视。

Beloved is set__________.

A:on a slave ship B:on a plantation before the Civil War C:in Ohioafter the Civil War D:in an African town

血浆蝰蛇毒时间（RVVT）正常，血浆PT延长，提示（）

A:因子Ⅶ缺乏 B:因子Ⅹ缺乏 C:因子Ⅶ和Ⅹ缺乏 D:因子Ⅶ和Ⅴ缺乏 E:因子Ⅶ和PF1缺乏

蝰蛇蛇毒时间(RVVT)和PT检测，可以鉴别因子Ⅶ和因子Ⅹ缺乏症，前者________，后者________。

RVVT正常、PT延长；RVVT和PT均延长

病历摘要：某患者，男性，20岁。皮下瘀血，来院就诊。血常规检查：红细胞和白细胞计数正常，血小板计数正常。APTT53秒，PT17秒，纤维蛋白原4.5g/L。 正确地描述凝血或纤溶系统的说法（）。

A:凝血时间正常可排除某个凝血因子缺乏 B:因子Ⅶ由肝细胞合成，依赖维生素K C:血友病A的遗传方式是性连锁隐性遗传 D:PT与RVVT结合可以鉴别因子Ⅶ和Ⅹ缺乏 E:原发性纤溶亢进症病人，血浆中出现大量FDP，故3P试验强阳性

血浆蝰蛇毒时间（RVVT）正常，血浆PT延长，提示（）

A:因子Ⅶ缺乏 B:因子Ⅹ缺乏 C:因子Ⅶ和Ⅴ缺乏 D:因子Ⅶ和Ⅹ缺乏 E:TF缺乏