Many college students fail to give a correct answer to the above question because ______.

A．Friday
B．Thursday
C．Wednesday
D．Tuesday

A．Scientists agree that the Cognitive Development Program once carried out will surely revolutionize education
B．Thinking can be taught
C．Thinking courses may give students great help
D．Scientists are optimistic about the results of their research

A．learning about how people solved problems
B．asking people to describe what they have in their minds
C．using computers to stimulate thought
D．recording mental processes of problem-solving