单项选择题

The heat released by burning oil and coal is the direct cause of global warming.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
Some industrialized countries are unwilling to spend money in reducing pollution.
A． Right
B． Wrong
C． Not mentioned
单项选择题
High tides used to attack Kiribati when there was strong wind or heavy rain.
A． Right
B． Wrong
C． Not mentioned
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