有关地球仪上经线和纬线的说法,正确的是( )
A:经线指示东西方向
B:纬线指示南北方向
C:所有经线的长度都相等
D:所有纬线的长度都相等
人们在遵守公共秩序时,应遵守的基本规则主要是( )
The fans were __________ to know the death of their favourite singer Whitney Huston