读我国某城镇区域示意图，图中东西方向排列的商店布局的主要原则是

A．市场最优原则

B．交通最优原则

C．便民最优原则

D．环境最优原则

Liu Hulan would not ___ even before the enemy and at last died for the people.

A．give in

B．give back

C．give out

D．give off