有了正确的道德导向表，还需要在社会范围内展开道德教育。()
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By mentioning "thumb sucking", the author wants to prove that______.
A. some behaviors are common before the age of 5
B. children will stop some behaviors as they grow
C. many behaviors only happen when children drop out
D. some parents overreact to their children"s behavior
The invention of the method of altering childrens behavior. is owing to______.
A. the desirable behavior
B. reinforced practice
C. decades of study
D. replacement of unwanted behaviors
加强干群之间的有效沟通，应化繁为简、区分轻重主次。()
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