问题 单项选择题 B型题

用于治疗儿童的慢性贫血()

A.浓缩红细胞

B.冷沉淀

C.白蛋白液

D.免疫球蛋白

E.血小板

答案

参考答案:A

解析:浓缩红细胞为每袋含200ml全血中的全部红细胞,用于各种急性失血、慢性贫血及心能不全者的输血。冷沉淀是新鲜冷冻血浆(FFP)在4℃融解时不融的沉淀物,因故得名,每袋20~30ml内含纤维蛋白原和FⅧ及血管性假血友病因子,主要用于血友病甲、先天或获得性纤维蛋白缺乏症等。白蛋白制剂不但能提高血浆蛋白水平,且可用来补充血容量,效果与血浆相当。免疫球蛋白多用于预防病毒性肝炎等传染病或用于低球蛋白血症引起的重症感染。血小板制剂可用于再生障碍性贫血和各种血小板低下的病人及大量输库存血或体外循环手术后血小板锐减的病人。

完形填空

Ero Carrera is watching the computer screen in a lab in California as he tracks a new computer virus slowly circling the globe, targeting cell phones. Working from the US office of the Finnish computer   21  firm, Carrera knows this virus could be the start of something big and   22  . He’s one of a couple of hundred “virus hunters” worldwide who guard computers and cell phones from   23 . That’s the job for these unlikely action heroes of the Internet age, where quick and curious minds are more important than strong   24 .

Carrera works with Tzvetan Chaliavski to form the two-man team in California. Like that of other employees in the anti-virus companies in the world, their work is at the battle front of providing   25  from the damaging of computer virus, worms and Trojans. They break down software to discover a new virus and crack its code. Then they   26  and ship out a software update to customers. Roughly 300 new samples of viruses await the pair on a(n)  27  day.

Carrera has created a mathematical formula(公式), to   28  easily the software structure of viruses. With it, he is better able to compare the many variants(变种) and families of malware(恶意软件). To his   29 , Chaliavski, it doesn’t even matter why someone would create a virus. All that   30  is the hunt.

21. A. advertising         B. commercial                    C. printing                   D. security

22. A. admiring             B. exciting                   C. inviting                   D. threatening

23. A. attack                B. bombing                 C. competition                    D. struggle

24. A. heads                 B. feelings                   C. muscles                   D. spirits

25. A. access                B. contact                    C. measures                 D. protection

26. A. copy                  B. create                  C. delete                  D. download

27. A. average               B. original                   C. previous                  D. special

28. A. get off               B. make out                 C. pick up                   D. take in

29. A. assistant              B. manager                  C. partner                           D. secretary

30. A. ignores               B. matters                    C. overlooks                D. rejects

单项选择题