单选题The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.Abe affectedBaffectCbe effectedDeffect
单选题
The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.
A
be affected
B
affect
C
be effected
D
effect
参考解析
解析：
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