汽车发动机由曲柄连杆机构、配气机构、燃料供给系、冷却系、润滑系、点火系、启动系组成。

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问题:

汽车发动机由曲柄连杆机构、配气机构、燃料供给系、冷却系、润滑系、点火系、启动系组成。()

考点:航空职业技能鉴定考试民航特种车辆操作工民航特种车辆操作工题库
题型:判断题
已知等差数列{an}的公差为d=
1
2
a1+a3+a5+…+a99=60
,求数列{an}的前100项之和.
题型:判断题

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.

题型:判断题

对传统公司理论的有关传媒的两种批判?

题型:判断题

什么是居住面积?

题型:判断题

()是钱塘江水系最大的支流,发源于磐安县龙乌尖。

A.曹娥江

B.浦阳江

C.婺江

D.乌溪江

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