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131-9A型APU的ECB控制:( )

A只有fuel metering valve

BThe fuel metering valve and the pressure regulator

CThe fuel metering valve, the flow divider solenoid valve and fuel shut-off 3 way solenoid valve

DThe fuel metering valve and the 3 way solenoid valve

正确答案:A (备注:此答案有误)

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