A city in Sweden has used rainbow-colored garbage recently.It has one of the most impressive recycling records in the world and met the EU's 2020 target of recycling 50% of waste many years ago.
Almost all the citizens in this city follow a strict recycling policy at home.People are expected to sort their household waste into seven separate categories,including food,textiles,cartons and metal.But what really makes the system stand out is the bright color code.
The significance for this becomes clear at the city's recycling factory.The bags are collected altogether,so when they arrive at the factory,they are mixed up.But thanks to those bright colors,scanners can select the bags and separate them easily.One of the benefits of this method of recycling is that there is less cross-pollution （交叉污染物），so more of the recycled waste can actually be used to make new things.The food waste in green bags is processed on site into mud to make biogas,which powers the city's buses.Waste that cannot be recycled is burned at a local factory to produce electricity.This creates greenhouse gases,reducing dependence on traditional fuels,such as coal.
As countries around the world try to improve their recycling degree,some may look up to this city as an example to follow - as long as they think they can persuade their citizens to get sorting work done properly at home.



What makes the system of rainbow-colored recycling so outstanding？ ______

A. The impressive colors of the rubbish bags.
B. The self-control of citizens.
C. The strict recycling policy.
D. The eco-friendly code.

Which of the following statements is true？ ______

A. Rainbow-colored rubbish is commonly seen around the world.
B. When the rubbish bags arrive at the plant,they are mixed up.
C. The food rubbish will not be recycled to make new things.
D. All rubbish is burned to create electricity.

If other countries want to recycle waste like this Swedish city,they first should ______ .

A. persuade citizens to use as much traditional fuel as possible
B. forbid citizens to create greenhouse gases
C. not allow citizens to create any waste
D. talk people into sorting household waste in a correct way

Where is this text most likely from？ ______

A. An announcement.
B. A poster.
C. A magazine.
D. A science fiction.