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问题 单项选择题

让病人直接面对能产生强烈焦虑的环境，并保持一段时间，不允许病人逃避，这种心理治疗是

A．系统脱敏法
B．释梦
C．满灌疗法
D．自信和社交技巧训练
E．自由联想

答案

参考答案：C

单项选择题

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

which determines the actions performed by or to each class or subclass and presents this information in the form of （）.

A．activity diagram

B．component diagram

C．sequence diagram

D．state diagram
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单项选择题

应用注射器采集空气样品时，采样体积一般不大于（）

A.10ml

B.50ml

C.100ml

D.150ml

E.200ml
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