使用液压弯管机、数控弯管机进行管件弯制时,首先进行试运转,检查弯曲压力、夹紧压力、靠

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使用液压弯管机、数控弯管机进行管件弯制时,首先进行试运转,检查弯曲压力、夹紧压力、靠背压力,均应达到规定压力后,方可进行()

考点:机车车辆管道工机车车辆管道工(中级)机车车辆管道工(中级)题库
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工人师傅用长6cm的圆柱形钢坯锻造成圆锥,已知圆锥的底面积是钢坯底面积的2倍, 圆锥的高是(    ) cm。

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潜涵作业是在高于大气压条件下从事水下劳动。在有些情况下,工人回到地面后出现肌肉骨关节疼痛、运动障碍、咳嗽、呼吸困难、皮肤灼热瘙痒等症状,初步判定为急性减压病,有效的处理措施是

A.卧床、对症治疗

B.局部热敷、吸氧

C.重新加压(高压氧舱),症状恢复后出舱

D.重新加压(高压氧舱),症状恢复并合理减压后出舱

E.不需特殊处理

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声音信号采样时,()不会直接影响数字音频数据量的多少。

A.采样率

B.量化精度

C.声道数量

D.音量放大倍数

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学籍管理的具体工作由学校的()负责,班主任在学籍管理中起着主要作用。

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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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