单项选择题


Passage Two
Questions 19 to 21 are based on the passage you have just heard.

A．Sign languages.
B．Natural languages.
C．Artificial languages.
D．Genuine languages.
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单项选择题
A．Books.B．Multimedia materials.C．Serial like journals and magazines.D．Not given.
A．Books.
B．Multimedia materials.
C．Serial like journals and magazines.
D．Not given.
单项选择题
A．Give the ring to a policeman.B．Wait for the owner of the ring in the rest room.C．Hand in the ring to the security office.D．Take the ring to the administration building.
A．Give the ring to a policeman.
B．Wait for the owner of the ring in the rest room.
C．Hand in the ring to the security office.
D．Take the ring to the administration building.
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