If the gas pressure behind the ring is built up too slowly, and thereby exerts an inadequaIfthegaspressurebehindtheringisbuiltuptooslowly,andtherebyexertsaninadequateoutwardpressureInsuchacase,thecombustiongascanpenetratebetweenthelinerandring,andviolentlyforcetheringinwards,inthegrooveWhatresultwillthistypeofsudden"shock"loadingeventuallyleadto? A、micro-seizure B、scratch C、break D、stick