单项选择题

A．To gain more oxygen.
B．To eliminate fatigue.
C．To get greater strength for attacking.
D．To exercise the jaw muscles.
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单项选择题
A．In the man’s office.B．In a classroom.C．In an Inuit artist’s sculpture workroom.D．In a museum of Canadian arts.
A．In the man’s office.
B．In a classroom.
C．In an Inuit artist’s sculpture workroom.
D．In a museum of Canadian arts.
单项选择题
A．To intimidate intruders on their territory.B．To keep social order and ease social tension.C．To warn others in the group of dangers.D．To show intimacy.
A．To intimidate intruders on their territory.
B．To keep social order and ease social tension.
C．To warn others in the group of dangers.
D．To show intimacy.
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