单项选择题

What is the news item mainly about

A. Iran has test-fired a new type of rocket.
B. Iran introduces an advanced navigation technology.
C. Iran displays the country’s technological improvements.
D. Iran launches a new version defense control system.
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单项选择题
There are more than ______ motor homes in America.
A. 15,000
B. 150,000
C. 1,500,000
D. 15,000,000
单项选择题
When did President Obama make his remarks at the Pentagon Memorial
A. On Sept. 11th, 2010.
B. On Sept. 11th, 2009.
C. On Sept. 18th, 2009.
D. On July 4th, 2008.
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