单项选择题

A．To have a talk with exhibitor.
B．To purchase a lab.
C．To discuss the possibility of negotiation with the Universal Computers Ltd..
D．To inquire more information about the scientific apparatus.
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单项选择题
The famous ______ Gold Rush began in the U. S. in the mid-nineteen century.
A．New York State
B．California
C．Pennsylvania
D．Texas
单项选择题
______, a well-known publisher of paperback books, was founded in 1935.
A．Oxford University
B．Longman
C．Pan Books
D．Penguin Boooks
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