问题 问答题 简答题

简述血液系统疾病的分类。

答案

参考答案:

(1)红细胞疾病:

①数量改变:常见各类贫血。

②质量改变:遗传性球形细胞增多症、海洋性贫血、阵发性睡眠性血红蛋白尿等。

(2)白细胞疾病:

①数量改变:粒细胞缺乏症,-白细胞增多常由感染、炎症等病理状态引起。

②质量改变:白血病、淋巴瘤、骨髓瘤。

(3)出血性疾病:

①血小板数量或质量异常的疾病:原发性血小板减少性紫癜、血小板无力症。

②凝血功能障碍:

A.凝血因子缺乏:血友病。

B.复合因素引起:弥散性血管内凝血(DIC.。

C.循环血中抗凝物质过多。

③血管壁异常:过敏性紫癜。

④其他:血栓性疾病与血流、血液成分、血液高凝状态、血管壁等多种因素有关。

单项选择题
完形填空

阅读下面短文, 掌握其大意, 然后从1—10各题所给的A、B、C和D项中, 选出最佳选项, 并在答题卡上将该项涂黑。
Philo Farnsworth, the inventor of one of the country’s greatest machines was actually born in a log cabin,  1 to high school on horse back and without   2 of university degree(indeed, at age 14), thought of the idea of electronic television. In 1906 Farnsworth was born in a community near Beaver City, Utah,  3 by his grandfather.  4 he was 12, his family moved to a ranch (大牧场)in Rigby, Idaho, which was four miles from, the nearest high school,  5 necessitating(使成为必要)his daily horseback rides. Because he was interested in the electron and electricity, he persuaded his chemistry teacher, Justin Tolman, to give him   6 instruction and to allow him to listen to a senior course.
The death of his father forced him to leave at the end of his second year, but, as it   7 , at no great intellectual cost. There were, at the time, no more than a handful of men   8 the planet who could have understood Farnsworth’s idea for building an electronic television system, and it’s   9 that any of them were at this local community. One such man was Vladimir Zworykin who had moved to the US from Russia with a Ph. D in electrical engineering. He went to work for Westinghouse with a dream of building an all-electronic television system. But he wasn’t   10 to do so.
小题1:
A.rodeB.ranC.droveD.jumped
小题2:

2,4,6

 
A.sakeB.applicationC.benefitD.significance

小题3:
A.livedB.settledC.inheritedD.occupied
小题4:
A.BecauseB.WhenC.HoweverD.Until
小题5:
A.thusB.thenC.finallyD.yet
小题6:
A.importantB.interestingC.specialD.vivid
小题7:
A.turned outB.showed upC.bore outD.reflected on
小题8:
A.inB.withinC.aroundD.on
小题9:
A.necessarilyB.essentialC.falseD.unlikely
小题10:
A.possibleB.capableC.thoughtfulD.able