【题目】阅读理解To extinguish(熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable(手提式的)kinds operate for less than a minute, so they are useful only on small fires. The law ...
To extinguish(熄)different kinds of fires, several types of fire extinguishers(灭火器)have been invented.They must be ready for immediate use when fire breaks out.Most portable(手提式的)kinds operate for less than a minute, so they are useful only on small fires.The law requires ships, ...
To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships,...
To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships,...
阅读理解。 To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a
【题文】To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law require...
【题目】阅读理解To extinguish(熄)different kinds of fires,several types of fir e extinquishers(灭火器)have been invented. T hey must b e ready for imme diat e us e when fir e breaks out. Most portable(手提式的)kinds operat e for less than a minut e, so they ar e useful only ...
To extinguish(熄)different kinds of fires, several types of fire extinguishers(灭火器)have been invented.They must be ready for immediate use when fire breaks out.Most portable(手提式的)kinds operate for less than a minute, so they are useful only on small fires.The law requires ships, trai...
To extinguish(熄)different kinds of fires several types of fire extinguishers(灭火器)have been invented.They must be ready for immediate use when fire breaks out.Most portable(手提式的)kinds operate for less than a minute so they are useful only on small fires.The law requires ships trains ...
To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships,...