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问题 多项选择题

计算短路电流的目的( )。

A．正确选择和校验电气设备
B．正确选择和校验载流导体
C．继电保护的选择和整定
D．校验电压互感器的热稳定性

答案

参考答案：A,B,C

单项选择题 A3/A4型题

男性，32岁。因慢性肾炎、肾功能衰竭于5个月前行同种异体肾移植，手术后维持抗排异治疗。近2周来发热，38.5～39℃，轻咳伴气急。X线胸片示两肺弥漫性细小结节状影，约0.8mm大小，分布比较均匀，其中部分融合。拟诊血行播散性肺结核。

本例抗结核治疗，宜选择下列哪一方案（）

A.异烟肼、链霉素、乙胺丁醇联合，总疗程1年半（链霉素3个月）

B.异烟肼、利福平、吡嗪酰胺、乙胺丁醇联合，疗程6个月，根据病情和免疫抑制剂使用情况可适当延长（吡嗪酰胺2个月）

C.异烟肼、链霉素、利福平、乙胺丁醇联合，6～9个月

D.异烟肼、利福平、乙胺丁醇联合，6～9个月

E.异烟肼、利福平、链霉素、吡嗪酰胺6个月
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填空题

Motivation is "the driving force within individuals that impels them to action." And goals are the sought-after results_____(1) motivated behavior.Motivation can be either positive or negative_____(2) direction. We may feel a driving force toward some object or condition, _____(3) a driving force away from some object or condition. For example, a person may be impelled toward a restaurant to fulfill a need, hunger, and away_____(4) an airplane to fulfill a need of safety. Some psychologists refer to positive drives_____(5) needs, wants or desires,_____(6) negative drives as fears or aversions._____ (7), though negative and positive motivational forces seem to differ dramatically_____(8) terms of physical and sometimes emotional activity, they are basically similar in_____(9) they both serve to initiate and sustain human behavior.____(10) this reason, researchers often refer _____(11) both kinds of drives or motives as needs, wants and desires.Goals, _____(12), can be either positive or negative. A positive goal is one toward_____ (13) behavior is directed and it is often referred to as an approach object. A negative goal is _____(14) from which behavior is directed away and it is sometimes referred to as an avoidance object. Since both approach and avoidance goals can be considered objectives of motivated behavior, most researchers refer to_____(15) types simply as goals. Consider this example. A middle-aged woman may wish to remain_____(16) attractive as possible. Her positive goal is to appear desirable, and_____(17) she may use a perfume advertised to make her irresistible. A negative goal may be to prevent her skin_____(18) aging, and therefore she may buy and use face creams._____(19) the former case, she uses perfume to help her achieve her positive goal — attractiveness; in the____(20) case, she uses face creams to help avoid a negative goal — wrinkled skin.
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