单项选择题

A．Food will go bad.
B．Food will be checked.
C．The bacteria will be found on food.
D．Food will not go bad so soon.
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单项选择题
A．Its courses cost less.B．It has a pool.C．The class size is smaller.D．It may offer the course he needs during the day.
A．Its courses cost less.
B．It has a pool.
C．The class size is smaller.
D．It may offer the course he needs during the day.
单项选择题
Xuemei Han was the only Chinese student in the Department of Ecology and Evolutionary Biology at Yale University.
A．Y
B．N
C．NG
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