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 arid 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 prevent recessions in the years noted

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单项选择题

According to the passage, the rate of employment can be expected to rise when ______.

A．productivity rises at the same rate as growth of the labor force
B．productivity and labor force increase at a greater rate than output
C．output exceeds productivity
D．rate of economic growth is less than the number of man hours required

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.