正确答案: D
I +IV
题目:The purpose of treating the cooling water of the diesel engine is to____. I、 resist the scale formation in the cooling chamber II、 lubricate the engine part III、 increase thermal capacity IV、 resist corrosion
解析:D
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举一反三的答案和解析:
[单选题]Which of the following factors will affect the strength and magnitude of the signal?
The size of the sensor.
[单选题]下列_______方法不是查找漏损的方法。
测量舷外水深
[单选题]如果缝合伤口时放置了胶片引流条,______要取出。
24-48小时后
[单选题]荡桨时,采用方式旋回圈最小()。
满舵配合一舷桨向前,另一舷桨向后