单项选择题

The purpose of Dr. Betas' study is to ______.

A．test the intelligence of the subjects
B．determine the psychological health of the subjects
C．improve brain-scanning technology
D．find out how the subjects deal with group/social pressure

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单项选择题

Why did so many subjects give incorrect answers

A．They failed to judge the length of the lines.
B．They wouldn't like to stick to their own beliefs.
C．They preferred to act in accord with prevailing social attitudes.
D．They wouldn't like their working brains to be investigated by M.R.I. scanners.

单项选择题

Dr. Asch failed to find out ______.

A．the number of subjects who caved in to group pressure
B．the reason why some subjects caved in to group pressure
C．whether the subjects who caved in to group pressure knew the right answer
D．whether the subjects were psychologically healthy