–Excuse me, can I take this seat? –Sure. _________.
A:Don't worry
B:Go ahead
C:Take it easy
关于物体的惯性,下列说法中正确的是( )
甲、乙两地同在30°N纬线上,甲地的经度是20°E,乙地的经度是20°W,则甲地在乙地( )