单项选择题

The second paragraph is mainly about ______.

A．the obsolescence of many human functions
B．the impact of information technology on individuals’ skills and jobs
C．rapid evolution of human labour
D．job dislocations and forced geographic relocations

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单项选择题

This passage is mainly about ______.

A．information technology
B．an increasingly knowledge-intensive environment
C．a modem definition of literacy
D．effects of modern information systems on the individual

单项选择题

The underlined word perturb in the first paragraph most probably means ______.

A．modify
B．neglect
C．permeate
D．upset