单项选择题

The author's purpose in this passage is to______.

A．define the economic terms used in discussion of employment
B．criticize the decisions of past administrations during recession years
C．call for the application of positive economic control policies in the year that lie ahead
D．allay current fears about increasing unemployment

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单项选择题

It can be inferred from the passage that the author would______.

A．advocate a carefully managed economy
B．prefer the employment rate to rise and fall with the value of the gross national product as a check on labor costs
C．perceive high unemployment as undesirable but unavoidable
D．contend that manipulation of the size of the labor force would have prevented recessions in the years noted

单项选择题

Which of the following statements is supported by the passage

A．As productivity rises, a greater amount of labor per dollar of national product can be expected.
B．Unemployment falls when production expands faster than labor force
C．Reduction in the growth of productivity and cutback in potential output are in the national interest.
D．The long-term rate of growth in our economy, if continued into the future, will eventually decrease our unemployment rate, all other factors remaining constant.