单项选择题

A．It is very economical.
B．It provides them with cheaper meals.
C．It gives a complicated system.
D．It gives free lunch and dinner.
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单项选择题
A．Because it was orange and soft.B．Because it was hard and economical.C．Because it was more abundant and economical.D．Because it looks like pig.
A．Because it was orange and soft.
B．Because it was hard and economical.
C．Because it was more abundant and economical.
D．Because it looks like pig.
单项选择题
A．When they get their meals.B．When they get the card.C．By the end of the week.D．By the end of every month.
A．When they get their meals.
B．When they get the card.
C．By the end of the week.
D．By the end of every month.
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