单项选择题

How much of American GNP comes from sectors that are affected by climate change

A．3%.
B．10%.
C．87%.
D．13%.
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单项选择题
In industrialized countries, what businesses are scarcely affected by climate change
A．Water systems.
B．Energy and property.
C．Services.
D．Coastal activities.
单项选择题
Which of the following activities must consider climate as an important factor
A．Microelectronics.
B．Communications.
C．Banking.
D．Farmin
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