将一个质量为1Kg、体积为0.8 dm3的物体轻轻投入到足够深的水中,当物体静止时,物体所处的状态及所受浮力大小是( )
A:物体漂浮,浮力为10N
B:物体悬浮,浮力为8N
C:物体沉底,浮力为10N
D:物体沉底,浮力为8N
已知直线DE与不等边△ABC的两边AC,AB分别交于点D,E,若∠CAB=60°,则图中∠CDE+∠BED=( )
Bread and butter my favourite breakfast, but this morning I didn't have any choice but some noodles.
实施依法治国首先是( )