If the temperature in the icebox is too high, the trouble could be（）<br>A:a clogged scale trap<br>B:air in the system<br>C:automatic controls not functioning properly<br>D:insufficient cooling water to the condenser

If the temperature in the icebox is too high, the trouble could be（）
A:a clogged scale trap
B:air in the system
C:automatic controls not functioning properly
D:insufficient cooling water to the condenser

出自：海船船员证

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