—When did they ______ this city?
—Two years ago.
A:arrive
B:get
C:get to
D:arrive at
– What's that_____ English?
– It's a map.
雄伟的长城,是中华民族智慧、勤奋、坚韧和凝聚力的精神象征,下列关于明长城修筑的目的和作用,叙述不正确的是( )