【单选题】Global Warming At the Kyoto conference on global warming in December 1997, it became abundantly clear how complex it has become to work out international agreements relating to the environment because...
A.
convince people that global warming is a real threat
B.
criticize some countries for refusing to cut down emissions harmful to the ozone layer
【单选题】The long years of food shortage in this country have suddenly given way to apparent abundance. Stores and shops are choked with food. Rationing is virtually suspended, and overseas suppliers have been...