单项选择题

A．In 1891.
B．In 1821.
C．In 1819.
D．In 1812.
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单项选择题
A．People’’s unawareness about global warming.B．Flooding in the Indian coast.C．Changes in the global weather system.D．Pollution and deforestation.
A．People’’s unawareness about global warming.
B．Flooding in the Indian coast.
C．Changes in the global weather system.
D．Pollution and deforestation.
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