When two fire teams are combating a fire simultaneously（同步）, they should _____. A. Never use different fire hose pressures B. Not use different sizes of fire hoses C. Not attack the fire from opposite（相反的） sides D. not wear protective clothing

单选题

When two fire teams are combating a fire simultaneously（同步）, they should _____.A. Never use different fire hose pressures B. Not use different sizes of fire hosesC. Not attack the fire from opposite（相反的） sides D. not wear protective clothing

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单选题

WHEN AN APU FIRE OCCURS ON GROUND:

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单选题

WHEN YOU PUSH THE AGENT PUSHBUTTON,THE FIRE EXTINGUISHER CARTRIDGE( ) .

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单选题

Tell two persons to be prepared to operate the fire extinguishers.

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单选题

When a fire starts, the temperature increases and causes the detector to operate

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