战于长勺。( )
A:长勺向(齐军)作战
B:在(齐军的)长勺作战。
C:在长勺(和齐军)作战。
D:我于长勺作战。
Mrs Lin advised the students ______ with friends online and said it was a waste of time.
“庄家一枝花,全靠肥当家”对这句谚语的理解,不正确的是