[填空题]There is much bitter feeling among those who, deprived of their social security benefits, queued at an eating hall and registered for jobs available.

[单项选择]What are those of us who have chosen careers in science and engineering able to do about our current problems
First, we can help destroy the false impression that science and engineering have caused the current world trouble. On the contrary, science and engineering have made vast contributions to better living for more people.
Second, we can identify the many areas in which science and technology, more considerably used, can be of great service in the future than in the past to improve the quality of life. While we can make many speeches, and pass many laws, the quality of our environment will be improved only through better knowledge and better application of that knowledge.
Third, we can recognize that much of the dissatisfaction we suffer today results from our very successes of former years. We have been so greatly successful in attaining material goals that we are deeply dissatisfied that we cannot attain other goals more rapidly. We have achieved a better life for
A. science and technology have created many social problems
B. science and technology have brought about many environmental disasters
C. science and technology have made us more distressed
D. we expect too much of science and technology at present