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
查看答案
当采用独立基础或条形基础时，基础埋置深度应从()算起。
According to the author, communication begins______.
A. with nonverbal interactions
B. two hundred thousand years ago
C. between mother and child
D. with words
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