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.
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单项选择题
A．In a laboratory.B．In a drugstore.C．In a supermarket.D．In the dining hall.
A．In a laboratory.
B．In a drugstore.
C．In a supermarket.
D．In the dining hall.
单项选择题
A．She’’s worried about the seminar.B．The man keeps interrupting her.C．She finds it too hard.D．She lacks interest in it.
A．She’’s worried about the seminar.
B．The man keeps interrupting her.
C．She finds it too hard.
D．She lacks interest in it.
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