连接船底板和内底板的横向构件是:()A.肋骨 B.桁材 C.横梁 D.肋板

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问题:

连接船底板和内底板的横向构件是:()

A.肋骨

B.桁材

C.横梁

D.肋板

考点:海船船员考试船体结构与船舶管系船体结构与船舶管系题库
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简述种植业生产特点。

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不属于同基因移植的是

A.异体皮肤移植
B.血管移植
C.LCyDig移植
D.肾移植
E.自体骨移植

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劳兰C主台故障信号是用()来表示的。

A.另增设一个可左右移动的脉冲信号

B.另增设一个可闪光的脉冲信号

C.主台的识别脉冲闪烁

D.主台脉冲组重复少发一个脉冲

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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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在港口工程勘察中,测得某黏性土原状试样的锥沉量(76g液限仪沉入土中的深度)为6mm。该黏性土天然状态属于()。

A.硬塑

B.可塑

C.软塑

D.流塑

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