实行对外开放 [ ]

①符合当今时代特征

②符合世界发展的大潮

③是加快社会主义现代化建设的必然选择

④有利于促进改革和发展 

A．①②③④

B．②③④

C．①③④

D．①②④ 

  It is known to all of us that lions ________ meat-eating animals.

A．belonged to

B．are belonging to

C．are belonged to

D．belong to