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问题 单项选择题

水利水电工程勘察的初步设计阶段，在下列各项对地下洞室的勘察要求中，哪一项是对高水头压力管道地段规定的特别要求（）

A.查明地形地貌条件 

B.查明地下水位、水压、水温和水化学成分 

C.进行围岩工程的地质分类 

D.查明上覆山体的应力状态与稳定性

答案

参考答案：D

解析：

据《水利水电工程地质勘察规范》(GB 50287—99)第5.4.1条第9款，(D)为正确。

单项选择题

Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists ofthree steps. The first step is (6) . It determines how the various results are computed by the product and presents this information in the form of a (7) and associated scenarios. The second is (8) , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is (9) , which determines the actions performed by or to each class or subclass and presents this information in the form of (10) .

A．use-casemodeling

B．classmodeling

C．dynamic modeling

D．behavioralmodeling
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