单项选择题

A．4 years.
B．5 years.
C．8 years.
D．At least 9 years.
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单项选择题
A．A famous photographer.B．Photographic processes in the 1800s.C．Photographic equipment used in the 1800s.D．A new museum.
A．A famous photographer.
B．Photographic processes in the 1800s.
C．Photographic equipment used in the 1800s.
D．A new museum.
单项选择题
A．Have to buy a special electronic ticket.B．Need an expensive device designed especially for the museum.C．Have to travel a long way to visit the university. [D] Need a computer linked to a telephone.
A．Have to buy a special electronic ticket.
B．Need an expensive device designed especially for the museum.
C．Have to travel a long way to visit the university. [D] Need a computer linked to a telephone.
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