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Animals save its resources for certain time of day because

【参考答案】

they can most easily catch food at that time
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A．Buy a computer.B．Go online.C．Study the income gap among different ethnic groups.D．Study the gender divide.
A．Buy a computer.
B．Go online.
C．Study the income gap among different ethnic groups.
D．Study the gender divide.
填空题
usually
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