单选题（）is a function of the reactive / resistive characteristics of the load items and cannot be adjusted by manipulating the alternator control devices.APower factorBPower ratioCcompression ratioDCompression factor
单选题
（）is a function of the reactive / resistive characteristics of the load items and cannot be adjusted by manipulating the alternator control devices.
A
Power factor
B
Power ratio
C
compression ratio
D
Compression factor
参考解析
解析：
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