一个质量为160g、体积为200cm3的物体,将它完全浸没在水里,松手后,物体将____ (选填“上浮”“悬浮”或“下沉”).(g取10N/kg)
注意:1). 词数100左右;
2). 信的开头已给出,不计入总词数;
3). 可适当增加内容,以使行文流畅
Dear Rob,
How is it going? Now, it's my turn to tell you about the Chinese school system.
Yours,
Li Kang