单项选择题

A．International travel and commerce.
B．Lack of efficient public health system.
C．Technology in food processing industry.
D．Unhealthy eating habits of people.
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单项选择题
Bailey has secured a grant to encourage the Tufts’’ chefs to increase the amount of local produce on Tufts’’ campuses.
A．Y
B．N
C．NG
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