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environment
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单项选择题
A．Both provide accommodations for the young.B．Both have places to store food.C．Both have devices for regulating the temperature.D．Both function as innate instinctive mechanisms.
A．Both provide accommodations for the young.
B．Both have places to store food.
C．Both have devices for regulating the temperature.
D．Both function as innate instinctive mechanisms.
单项选择题
A．Joan may have taken a wrong train.B．Joan won’t come to the conference.C．Joan will miss the next conference.D．Joan may be late for the opening speech.
A．Joan may have taken a wrong train.
B．Joan won’t come to the conference.
C．Joan will miss the next conference.
D．Joan may be late for the opening speech.
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