Tractors and hand tools．,Helicopters and airplanes．,The-找考题网

单项选择题

A．Tractors and hand tools.
B．Helicopters and airplanes.
C．The slightly higher humidity.
D．The 20-kilometer fire lines.

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单项选择题A．The Angeles National Forest.B．The fire fighting in Los Angeles.C．The tools used in fire fighting.D．The protection of Mount Wilson.

A．The Angeles National Forest.
B．The fire fighting in Los Angeles.
C．The tools used in fire fighting.
D．The protection of Mount Wilson.

单项选择题A．Crafting a replacement for the Kyoto Protocol.B．Reducing emissions of greenhouse gases.C．Stopping industrial emissions of greenhouse gases.D．Coping with the effects of climate change respectively.

A．Crafting a replacement for the Kyoto Protocol.
B．Reducing emissions of greenhouse gases.
C．Stopping industrial emissions of greenhouse gases.
D．Coping with the effects of climate change respectively.

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