西北地区与北方地区分界线,大致与下列哪一条等降水量线最接近?( )
A:200mm
B:400mm
C:600mm
D:800mm
图为我国华北地区等高线地形图,仅考虑自然条件,图中乙村与甲村相比( )
How ____ (care) you are! You've knocked the cup off the table again!