— Yes, I have a dog. She's nice to_______.
A:someone; somebody
B:anyone; everyone
C:no one; nobody
D:everybody; no one
The miners were t____ underground. There was no way out!
若a﹣b=3,ab=2,则a2b﹣ab2= ____.
如图,已知△ABC的周长是1,连接△ABC三边的中点构成第二个三角形,再连接第二个三角形三边的中点构成第三个三角形…依此类推,则第2015个三角形的周长为( )
东南亚唯一的内陆国是( )