Unfortunately, the fire fight found that the extinguisher was not (behaving) well.選擇能代替括號里的選項

A、working

B、applying

C、proceeding

D、performing

聽力原文：(A) An extinguisher is being used to put out a fire.

(B) A fire extinguisher is hanging on a wall.

(C) The extinguisher is being recharged.

(D) The fire extinguisher is above the sign.

A．

B．

C．

D．

Why does the author mention the fire extinguisher hose in paragraph 2？

A．To emphasize the unsafe working conditions

B．To show the manager's leadership skills

C．To illustrate the factory's modem technology

D．To explain how the fire was eventually put out

This fire extinguisher is to be used only in case of ___________.

A. urgency

B. crisis

C. immediacy

D. emergency

A foam-type portable fire extinguisher is most useful in fighting a fire in ______.

A.generators

B.oil drums

C.the bridge controls

D.combustible metals

A portable dry chemical fire extinguisher discharges by ______.

A.gravity when the extinguisher is turned upside down

B.pressure from a small CO2 cartridge on the extinguisher

C.air pressure from the hand pump attached to the extinguisher

D.pressure from the reaction when water is mixed with the chemical

The fire extinguisher uses a chemical ______ rather than water.

A．foam

B．foil

C．fraud

D．fuse

The fire extinguisher uses a chemical ______ rather than water.

A．foam

B．foil

C．fraud

D．fuse

What type of extinguisher should be used for an electric fire？ ________

A.CO2

B.Form

C.Water

D.Water and Form