单选题When the refrigeration demand is small,（）Athe expansion valve will move toward the wide open positionBthe expansion valve will move toward the closing positionCthe feeler bulb will conveys the high temperatureDthe superheat degree will raise
单选题
When the refrigeration demand is small,（）
A
the expansion valve will move toward the wide open position
B
the expansion valve will move toward the closing position
C
the feeler bulb will conveys the high temperature
D
the superheat degree will raise
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