单项选择题

According to the passage, Greenhouse gases do NOT include _______.

A．carbon dioxide
B．methane
C．nitrous oxide
D．fossil fuels
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单项选择题
When did the weather recordkeeping begin
A．In 1990s.
B．In 1880s.
C．In 1994.
D．In 2002.
单项选择题
According to the passage, which year is the warmest so far
A．2004
B．2002
C．1998
D．2003
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