Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）<br>A:Thermal expansion valve frozen open<br>B:Suction gas heat exchanger bypassed<br>C:Condenser clogged or fouled<br>D:High pressure cutout switch inoperative

Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
A:Thermal expansion valve frozen open
B:Suction gas heat exchanger bypassed
C:Condenser clogged or fouled
D:High pressure cutout switch inoperative

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