单项选择题国内培训工作者常用的划分法,:海学员分为四类:积极主动型、反思型、( )和实践型。
单项选择题'Flooding back' is a condition where the liquid refrigerant _____.A.vaporizes in the condenserB.reaches the compressor through the suction lineC.flashes in the liquid lineD.condenses in the receiver