30.What can be inferred about the sea mammals and birds according to Lavinia Suberg?A.They are afraid of living alone.B.They are especially interested in fishC.They mainly feed on small organismsD.They like to live in warm ocean areas.31.What can be the test title for the text?A.Life in the Celtic Sea.D.Puzzles in Ocean Creatures.C.Water Robots Exploring the Celtic Sea.D.Water Vehicles Being Developed in Britain.DChina is recognized as a world leader in the development of artificial intelligence (AI)and facial recognition systems.A Chinese company says it has created a new facialrecognition system that can identify people even if they are wearing masks ()Engineersat the Beijing-based company say their system is the first to be created to effectively identifypeople wearing face masks.The company told a news agency that a team of 20 people built the system in about amonth.The system is based on existing technologies developed over the past 10 years.Theprocess involved adding a collection of about 6 million unmasked faces and a much smallercollection of masked faces,the company said.The company is now selling two main kinds of products that use the new technology.One performs"single channel"recognition,which is designed to be used at the entrances tobuildings.The other product is a "multi-channel"recognition system that uses groups ofsurveillance (cameras.It can identify individuals in a crowd of up to 30 people withina second"When people are wearing a mask that covers the mouth and the nose,the recognitionrate can reach about 95%,which can ensure that most people can be identified,"said Huang,vice president of the company.He added that the system's success rate for people not wearinga mask is about 99.5%.