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
查看答案
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。()
Which of the following best summarizes the main idea of the text？
A. We should regard such entertainment as an important part of our cultural heritage.
B. Entertainment was much better in the past than today.
C. We should never underestimate the skills used to deceive.
D. We need to make more people aware of this unique form. of entertainment.
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