单项选择题

The passage tells us ______.

A．the relationship between supply and demand
B．the possible results of government controls
C．the necessity of government control
D．the urgency of getting rid of government controls

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单项选择题

The job history has become such an important document because ______.

A．there has been an increase in the number of jobs advertised
B．there has been an increase in the number of applicants with degrees
C．jobs arc becoming much more complicated nowadays
D．the other processes of applying for jobs are more complicated

单项选择题

In the past it was expected that first job hunters would ______.

A．write an initial letter giving their life history
B．pass some exams before applying for a job
C．have no qualifications other than being able to read and write
D．keep any detailed information until they obtained an interview