单项选择题

A．A vacation trip to Yellow Stone Park.
B．A lecture by a visiting professor.
C．Her biology thesis.
D．A research project.
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单项选择题
A．Mating habits of squid and octopus.B．The evolution of certain forms of sea life.C．The study of marine shells.D．Survival skills of sea creatures.
A．Mating habits of squid and octopus.
B．The evolution of certain forms of sea life.
C．The study of marine shells.
D．Survival skills of sea creatures.
单项选择题
A．Many French people.B．Narrow streets and little old shops.C．Many foreign restaurants.D．Jazz music bands.
A．Many French people.
B．Narrow streets and little old shops.
C．Many foreign restaurants.
D．Jazz music bands.
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