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
请仔细观察下边漫画,回答下面的问题。
下列各组地理事物中,能够沿一定方向并按实际分布顺序排列的是( )
— He's never advised to achieve a balance between his job and hobbies, ________? — _______. His parents and teachers often offer him advice.
如果a>0,b<0,且a、b两数的和为正数,那么( )