用手将一重为6N的物体全部浸入水中,物体排开的水的重为10N,此时物体受到的浮力为 ____N;
Name
Height(cm)
Weight(kg)
Place to live
Places around home
Hobbies
Things to do at the weekend
Ann
150
38
city
shops, a cinema, a library
reading
read books, see a film
Sue
145
40
countryside
hills, rivers,
trees
riding,
running
run with her dad
城市化的最主要标志是( )