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（请给出正确答案）
A system of arbitrary vocal symbols used for human communication is called
A．sociolinguistics.
B．psycholinguistics.
C．anthropological linguistics.
D．language.
答案
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第3题
A.Advanced Input Output System
B.Basic Input Output System
C.Classic Input Output System
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第4题
Why is the present education system criticized according to the passage？
A．Because the examination system is not fine.
B．Because it is too examination-oriented.
C．Because the examination system is not scientific.
D．Because the examination system is out of date.
第5题
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A．Right
B．Wrong
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第6题
Legislation that built a national highway system was not signed until the 1950s.
A．Y
B．N
C．NG
第7题
The system will be cancelled when you use the key to open the back door.
A．Y
B．N
C．NG
第8题
The author cites examples in order to illustrate ______.
A．what a distributed system is
B．advantages of distributed systems over centralized systems
C．the development of the distributed system
D．the wide application of distributed systems
第9题
The author of this passage seems to _____________.
A．be interested in the committee system
B．favor the committee system
C．be indifferent to the committee system
D．oppose the committee system
