Why did the United States first launch satellites into space
A. To improve navigation for warplanes and warships.
B. To guide smart bombs that home in on moving targets.
C. To collect meteorological data.
D. To sense remote volcanic eruptions.
查看答案
According to the speaker, it is foolish and childish for a filmmaker to mix his preconceptions with objective truth when he produces a documentary.
A. True
B. False
How much has the use of precision-guided weapons increased in the past few years
A. Less than 6%.
B. More than 6%.
C. More than 3%.
D. Less than 3%.
What is the main topic of the talk
A. Jefferson’s views about commercialized agriculture.
B. International trade in the nineteenth century.
C. Improvements in farm machinery in the United States.
D. Farmers’ loss of independence.
The value of understanding the language of a foreign country should not be over-estimated, though many blunders in international advertising result directly from translation mistakes.