A:A1和a1
B:Sum和Summary
C:Aver和Average
D:A1和A_1
我国幅员辽阔、人口众多、自然景观差异较大.读我国疆域示意图,图中所示黑河﹣腾冲线是我国的( )
→Eating more vegetables will ____ ____ ____ to you.