________ are professionals who work in a wide range of knowledge-intensive industries

The number of presidential press conferences held each year since the 1930s has __________

a. increased b. decreased c. remained constant d. spiked in the 1970s, but since declined

A perpetrator of the game of destruction in the Soviet Union was ______.

a. Josef Stalin b. Adolf Hitler c. Aleksandr Solzhenitsyn d. Slobodan Milosevic