A:us; his
B:our; his
C:our; him
D:us, him
如果△ABC的两边长分别为3和5,那么连结△ABC三边中点D、E、F所得的△DEF的周长可能是( )
如图所示的血管,表示动脉的是( )
请根据对话选词填空
ducks quiet nature park people buildings
There is a____. The nature park is____. There aren't many ____. There aren't many tall____. There are some animals. They are____and rabbits.