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【单选题】
两名保龄球教练分别训练各自的队员。他们的队员球打倒了7只瓶。教练甲对自己的队员说:“很好!打倒了7只。”他的队员听了教练的赞扬很受鼓舞,心里想,下次一定再加把劲,把剩下的3只也打倒。教练对他的队员说:“怎么搞的!还有3只没打倒。”队员听了教练的指责,心里很不服气,暗想,你咋就看不见我已经打倒的那7只。结果,教练甲训练的队员成绩不断上升,教练乙训练的队员打得一次不如一次。这种“保龄球效应”说明: ( )A.
只有正强化才能够调动下属的积极性 ；
B.
负强化只能打击下属的积极性，而不能调动下属的积极性;
C.
领导者应该尽可能多的使用正强化，少使用负强化;
D.
领导者应该只使用正强化，放弃负强化;
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举一反三
【单选题】It can be inferred from the text that the retail price of petrol will go up dramatically if
A.
price of crude rises.
B.
commodity prices rise.
C.
consumption rises.
D.
oil taxes rise.
【单选题】下列各项中,负责制定部门预算资金调剂使用批准权限的是
A.
本级财政部门
B.
财政部
C.
国务院
D.
本级政府 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】The author suggests that Aristotle believed which of the following was true of the dramatic art that existed prior to Aeschylus?
A.
It was unusually resourceful in finding ways to extend the unity of time beyond a single day.
B.
It was less elegant than later drama because its disregard for unity of place necessitates the movement of the chorus.
C.
It tended to demonstrate better unity of time than of character and action.
D.
It did not employ a beginning middle or end, and this fell outside the acceptable range of dramatic principles.
E.
It tended to overemphasize the use of cause and effect, instead of the continuity of time, in organizing its action.
【简答题】根据下列文章,请回答 23～30 题。 Exercising Your Memory 1 Aging does not mean a dramatic decline in memory power, unless you help it happen by letting your mind go． 2 That’s not to say that memory doesn’t change t...
【单选题】关于翡翠和独山玉的区别，以下哪种说法是不对的?()
A.
与翡翠一样，独山玉的颜色十分丰富。
B.
独山玉的结构为细粒结构，肉眼看不见结晶颗粒。这一点可以与具粒状结构的翡翠和其它玉石品种区分开来。
C.
优质独山玉与优质翡翠的外观非常相似，如果不借助鉴定仪器，肉眼是很难区分开的。
D.
优质独山玉的颜色与翡翠相似，但通过潭尔斯滤色镜就可以区别它们。
【单选题】()是颜色最丰富的玉材,常具有两种以上的颜色,斜长石80%,因次要组成矿物不同颜色也不同,常可作“俏色”玉雕,色泽越鲜艳越好。
A.
岫岩玉
B.
和田玉
C.
蓝田玉
D.
独山玉
【单选题】_________ hold their distance, rarely establish eye contact, and gesture less dramatically; however, _________stand in close proximity to each other, maintain eye contact, and gesture more frequently.
A.
Women, girls
B.
Men, boys
C.
Men, women
D.
Women, men
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