综合性学习。
密度为0.8×103kg/m3的实心木块，轻放于足够深的水中，木块静止后，浸入水中的体积与木块体积之比为（ ）
如图，直线AB∥CD，点F在直线AB上，点G、E在直线CD上，FE平分∠BFG，且∠1=50°，求∠2与∠3的度数．
A
Lost:A pencil box
It is blue.My name is Jenny Brown.My phone number is 236-9878.
Found:A watch
Is this your watch?Please call Dave. Phone number :236-8567.
Tina,
A nice black bag is in the school library .Is it yours? Ask Miss Li for it.---Jack.
A nice green notebook is in Classroom 2B.A photo of a girl is in it.Is it yours?E-mail me at Gina23@163.com.
