[单选题]Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?

正确答案 ：D

Insufficient condenser cooling water flow.

[单选题]关于下列四冲程柴油机气缸套功用中不正确的是()

正确答案 ：C

开有气口构成扫气通道

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