单项选择题
The author believes that our knowledge of social systems is more secure than that of physical systems because ______.
- A．it is not based on personal experience
B．new discoveries are less likely to occur in social sciences
C．it is based on a fairly representative quantity of data
D．the records of social systems are more reliable
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相关考题
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单项选择题
Which of the following statements is true
A．The men in Samoa were not quite blind.
B．A girl called Virginia could read newsprint even when she was blindfolded.
C．Rosa' s ability to see was confined to her fingers.
D．The result of the last test on Rosa was least doubtable. -
单项选择题
Which of the following makes the demonstration most persuasive
A．To read through glass, blindfolded.
B．To identify the color and shape of light on a screen while securely blindfolded.
C．To carry out the test with someone pressing on her eyeballs.
D．To work from behind a screen, blindfolded and with a card round her neck. -
单项选择题
The first white men to visit Samoa found people who ______.
A．were not entirely blind
B．described things by touching them
C．could see with their hands
D．could see when they hold out their hands
