单项选择题
A.M/E turbocharger B.exhaust gas boiler C.incinerator D.fresh water generator
When comparing the air with 50% of relative humidity wi...
单项选择题When comparing the air with 50% of relative humidity with the air with 100% of relative humidity, which one will hold more water?（）
A.the former B.the latter C.not for sure D.same each other
What is the result of converting 10℃ into degree of Fah...
单项选择题What is the result of converting 10℃ into degree of Fahrenheit?（）
A.0°F B.18°F C.32°F D.50°F
A process of comparing the actual performance of a mach...
单项选择题A process of comparing the actual performance of a machine with the intended performance, and the adjusting the machine to reduce and eventually eliminate the difference between the actual and intended performance is called（）
A.open loop control B.feedback C.combining control D.integral process
