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单选题
On reciprocating (piston) engine powered airplanes, the mixture control provides a mechanical linkage with the mixture control valve of the carburetor, or the fuel control unit of fuel injection engines, to control the size of the fuel feed aperture, and thus, the air/fuel mixture.
A
In engine-powered aircraft, the mixture control mechanism operates via a mechanical linkage with the piston＇s mixture control valve. This mechanism regulates the aperture size of the fuel feed and consequently adjusts the ratio of air to fuel in the mixture.
B
On airplanes powered by piston engines, the mixture control offers a mechanical connection with the carburetor＇s mixture control valve or the fuel control unit of fuel injection engines to regulate the size of the fuel feed aperture and subsequently the air/fuel mixture.
C
The mixture control function in airplanes is to establish a connection between the mixture control valve of the carburetor and the fuel control unit of fuel injection engines. Its primary purpose is to regulate the fuel feed aperture size.
答案解析
正确答案：A
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