According to the passage, which of the following is true about Lamarcks theory?
A. No one"s arguing about the validity of it.
B. It is called the new Lamarckism by some.
C. Some part of it has been proved reasonable.
D. It helps understand the causes of diseases.
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According to the author, infants learn the meanings of words through______.
A. hearing words repeatedly
B. the association of words and actions
C. their mother"s love
D. a bath of physical sensations
The author cites the fact that humans are capable of making 40 sounds primarily in order to ______.
A. contrast it with the number of complex languages humans have created
B. educate the reader
C. emphasize the importance of nonverbal communication
D. make a transition into the next paragraph