A:book
B:pen
C:panda
Everything________into consideration,the project is expected to be finished in two months.
下面哪首诗表现朋友之间依依惜别之情?( )
一只重500N的箱子放在水平地面上,甲学生用100N的水平力将箱子水平移动10m,乙学生把这只箱子匀速提高2m,那么,他们做功的大小是( )