【简答题】_ 小题1:___There were few people on the earth, and natural resources seemed to be unlimited. Today things are different. The world has become too crowded. We are using up our resources too quickly, and ...
【简答题】完形填空。 Most people want to work, but it is 1 in today's world to find work for everybody. The economics(经济)of the world need to 2 by 4% each year 3 the old number of jobs for people.Often this is not ...