单项选择题

The United States is by far the industrial country in the world.

A. biggest
B. second biggest
C. third biggest
D. fourth biggest
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单项选择题
The U.S. has less than of the world’s population, but it produces about ______ of the total world output.
A. 6%, 25%
B. 6%, 23%
C. 7%, 25%
D. 7%, 23%
单项选择题
It was the trend of New Right conservatism that brought ______ into the White House.
A. Kennedy
B. Johnson
C. Nixon
D. Reagan
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