According to environmentalists, what causes BP to oppose banning plastics?

• A、 Its consideration of its own interest.
  
  

• B、Its worry about the loss of consumers.
  
  

• C、Its desire to influence world economy.
  
  

• D、Its concern about the environment.
  
  

What happened to the Soviet spacecraft?

• A、It was wrecked during the mission.
  
  

• B、It was recovered after its return to Earth.
  
  

• C、It stayed in the moon's orbit.
  
  

• D、It disappeared in the outer space.
  
  

56.(  )