1 . The connection between people and plants has long been the subject of scientific research. Recent studies have found positive effects. A study conducted in Youngstown,Ohio,for example, discovered that greener areas of the city experienced less crime. In another, employees were shown to be 15% more productive when their workplaces were decorated with houseplants.
What is the first paragraph mainly about?
A.A new study of different plants. | B.A big fall in crime rates. |
C.Employees from various workplaces. | D.Benefits from green plants. |
您最近半年使用:0次