风桥断面要求（）。
A、不小于原断面的50%
B、与原断面相同
C、不小于原断面的80%
参考答案：C
(2013·山东高考)________ at the cafeteria before, Tina didn't want to eat there again.
A．Having eaten
B．To eat
C．Eat
D．Eating
