In order to prevent forest fires, forest experts in the United States have come up with a good method of fire prevention by fire: forest managers are required to regularly select the weather with low wind speed, low temperature and high temperature, and artificially burn the small trees, shrubs, dry branches and dead leaves under the trees, so as to prevent natural fires and help put out forest fires.
Which of the followings can not be infered
Preventing forest disasters requires forest managers to take the initiative. Setting prevention in advance is an effective fire prevention measure