The best title for the passage might be ______.
A. Science and Technology in the 21st Century
B. Science Education for the Public
C. Scientific Advances and Ensuing Problems
D. The Goal of Primary, Secondary and Higher Education
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All of the following are steps involved in true cloning EXCEPT ______.
A. selecting a stem cell
B. taking a developed cell
C. reactivating the genome within the developed cell
D. resetting the developmental instructions in the cell to its original state
What is the author's attitude toward some recent figures mentioned in Paragraph 3？
A. Optimistic.
B. Skeptical.
C. Worrisome.
D. Critical.
The word "disparity" (Paragraph 2) may be replaced by ______.
A. difficulty
B. diversity
C. different
D. density
The second paragraph is mainly about ______.
A. the difficulties faced by young people in finding jobs
B. the gap between scientific and technical professionals and non-professionals
C. the difficult problems raised by rapid scientific advances
D. scientific research in the 21st century
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