问题 单项选择题

下列关于治疗性血液成分置换术说法哪项是正确的

A.治疗性血液成分置换术可分为治疗性置换术和单采术两大类

B.治疗性置换术主要有治疗性血浆置换术和治疗性红细胞置换术

C.治疗性单采术主要是指治疗性白细胞单采术、血小板单采术和红细胞单采术

D.以上均是

答案

参考答案:D

解析:治疗性血液成分置换术是指运用手工操作或机器运转程序分离和去除血液中一些病理成分,置换入正常的血液成分或晶体液或胶体液等,以达到治疗疾病的目的。可分为治疗性置换术和单采术两大类。治疗性置换术主要有治疗性血浆置换术和治疗性红细胞置换术。而治疗性单采术主要是指去除特殊细胞而言, 如治疗性白细胞单采术,治疗性血小板单采术和治疗性红细胞单采术等。

单项选择题

People are indulging in an illusion whenever they find themselves explaining at a cocktail (鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between US, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are (8) of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions.
The main reason we tend to focus on the (9) rather than the human side of the work is not because it’s more (10) , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk (恐惧) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp (干脆的, 干净利落的) and clean in their effects, but they matter more than any other aspect of the work.
If you find yourself concentrating on the (11) rather than the (12) , you’re like the vaudeville character (杂耍人物) who loses his keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!".

A.technical
B.classical
C.social
D.societal

单项选择题