It is concluded that educational attainment and patience are related because______.
A. patience helps students to do better
B. gratification is delayed by receiving higher education
C. schooling makes people less likely to postpone rewards
D. higher education can make people value the future more
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The brand name Muzak was dropped in 2013 because it______.
A. was outdated
B. was bought by Mood Media in 2011
C. was often associated with generic music
D. entertained customers better
People who fret that a persons criminal path is set already can take the remedial action of______.
A. keeping healthy
B. attaining higher incomes
C. receiving higher education
D. avoiding punishments
All of the following make the new research differ from the previous ones EXCEPT______.
A. the researchers tracked all the subjects
B. the researchers surveyed a much wider range of children
C. the researchers explained the children" s parental background
D. the researchers considered the parents" cognitive ability
燃煤锅炉运行时，锅炉风量的大小可以通过观察火焰和烟气的颜色大致作出，风量过小时()。
A. 火焰呈麦黄色，烟气呈灰白色
B. 火焰白亮刺眼，烟气呈白色
C. 火焰呈暗红色，烟气呈淡黑色
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