单项选择题

According to the author, languages, whether civilized or not, have the characteristics EXCEPT ______.

A．the machinery for vocabulary expansion
B．possessing their own sound patterns
C．machinery for the transfer of ideas
D．surprisingly complicated distinctions in degree of remoteness
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单项选择题
The examples given by the writer in Paragraph 5 serve ______.
A．to prove the high technology has a promising future
B．to support his assumption of new type of teamwork in the preceding paragraphs
C．to show that it tends to be an end to teamwork soon
D．to indicate the computer-assisted team effort just means investigation and simulation
单项选择题
The article states that grunt-and-groan forms of speech are found ______.
A．nowhere today
B．among the Australian aborigines
C．among Eastern cultures
D．among people speaking "backward" languages
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