_____ is the temperature at which a liquid fuel gives off sufficient vapor to form. an ign

The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its _____.

When the temperature of the refrigerant flowing out from the condenser is below the condensing temperature, it is said to be _____.

We can realise how deeply a finger is put into water at body temperature ______.A．from the

The working pattern of Hainan Airlines is similar to______of capital Airlines.A．thatB．whic

It was at this time ____ he adopted the pen name “Mark Twain”.A: whenB: thatC: at whic

The adventurer started ______ at midnight in a temperature of 30°C below zero.A．outB．upC．o