In a gasoline injection engine, what type of injector is installed near the throttle?

SPI: Single-point injection): Several cylinders are called one injector for single-point injection. 1 The centralized injection device is installed above the throttle valve of the intake pipe, and L ~ 2 injectors are used for centralized injection. Gasoline is injected into the intake air flow, and the formed combustible mixture is distributed to each cylinder by the intake manifold. Single point injection is also called TBI: throttle body fuel injection (TBI) or central fuel injection (CFI). The cost of single-point injection system is lower, only slightly higher than that of traditional carburetor. At present, it is widely used in Volkswagen cars at home and abroad.

The answer is: A.