单项选择题

A．Attracting mates.
B．Staking their territories.
C．Hearing each other.
D．Sleeping.
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单项选择题
A．Both countries occupying San Juan Island.B．British ownership of the island.C．American ownership of the island.D．San Juan Island becoming independent.
A．Both countries occupying San Juan Island.
B．British ownership of the island.
C．American ownership of the island.
D．San Juan Island becoming independent.
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