用手将一重为5N的物体全部压入水中，物体排开的水重8N，此时物体受到的浮力为 ____N，放手后物体将 ____（填“上浮”或“下沉”），待物体静止时所受浮力为 ____ N．
I had a good time during the summer holiday.
属于生物基本特征的是（ ）
What nice model planes! Can you show us _________ you make them?
