某汽车车牌是“渝A12345”请问车牌中的“渝”是以下哪个省区的简称( )
A.云南省
B.四川省
C.重庆市
D.甘肃省
重庆市简称渝;
故选:C.
—What _____your sister have just now? —Some noodles[ ]
A. was
B. does
C. did
D. is
梯形的上底与下底的和一定,它的高和面积成( )比例。