Hot metal______ as it grows cooler.A．reducesB．contractsC．compressesD．condenses

Cylinder liner cooling is often referred to as _____.A.piston coolingB.sleeve coolingC.cen

Just be as cool as a cucumber. The underlined part means______.A．happyB．calmC．straightD．co

It is said that no rose grows without a thorn. The italicized part functions as a（n)______

The process to unhook yourself can be summarized as______.A．cooling yourself down plus goo

Copper as well as most metals ____________.A. is a good conductorB. is a good insulator

_________(59)A.warm B.coldC.cool D.hot