单项选择题

Lightning-caused fires can be controlled quickly by ______.

A．holding the fire damages to a minimum
B．people who have changed their attitude and behavior
C．enough rue fighters with good fire-fighting devices
D．carrying out experiments in "seeding" thunder clouds

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热门试题

单项选择题

This passage is chiefly about ______.

A．smoking in forests
B．changing the attitudes and behavior of millions of people
C．the chief causes; of forest fires and their prevention
D．advances in knowledge of fire weather

单项选择题

Which of the following statements is true according to the passage

A．It is difficult to prevent forest fires.
B．Smoking is allowed only in certain forests.
C．11% of the forest fires in the Western States are caused by lightning.
D．Experiments in "seeding" thunder clouds have helped reduce lightning-caused forest rues.