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问题 判断题

对于低阻型管路，离心泵的并联流量大于串联所提供的流量，但低于串联时所提供的压头。（）

答案

参考答案：错

解析：对于低阻型管路，离心泵的并联后流量及压头大于串联所提供的流量和压头。

单项选择题 B型题

患者女性，58岁，突发胸闷、憋气。查体：血压50/30mmHg，心率150次/min，吸气时动脉收缩压下降。最可能的诊断为（）

A.肥厚型心肌病

B.慢性大量心包积液

C.急性纤维蛋白性心包炎

D.急性心包填塞

E.以上均不是
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单项选择题

Traditional structured analysis techniques focus upon the flow of (71) within a system. Object - oriented analysis emphasizes the building of real - world models. It examines requirements from the perspective of the classes and objects found in the vocabulary of the (72) domain.

Traditional system design method emphasizes the proper and effective structure of a complex system. Object -oriented design method encompasses the process of object -oriented decomposition and a (73) for depicting both logical and physical as well as static and dynamic models of the system under design.

Object - oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an (74) of some class, and whose classes are all members of a hierarchy of classes united via (75) relationships.

74（）

A．instance

B．example

C．existence

D．implementation
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