—I'm sorry but I'm afraid I can't go to your party tonight.
—Never mind. Maybe _______ time.
A:other
B:the other
C:others
D:another
责任产生于( )
下图为某地区等高线地形图。读图,完成下题。根据等高线地形图判断,图中河流的总体流向大致是( )
用达尔文的进化论观点分析,动物保护色的形成是( )