There are three main thinking barriers in the thinking process of innovative problem solving:______ 、______ 、______ 。
According to TRIZ, how difficult an innovative problem is to solve depends on______
Environment, resources and () are the three major problems facing human society today?
A. substances
B. population
C. pollution
() it is the key way to implement the source control of environmental pollution in manufacturing industry and the only way to realize the sustainable development of manufacturing industry in the 21st century.
A. green design
B. industrial design
C. green manufacturing