单项选择题

A．In a bank.
B．In the grass.
C．In a park.
D．At the laboratory.
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问答题
Now that the cold war is over, we must begin to ________ (集中更多的精力来谋求世界和平).
单项选择题
Tufts school will get the staff in the cafeteria to give the added-value to the local produce.
A．Y
B．N
C．NG
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