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单选题
对涡轮发动机来说，排气系统包括发动机本体以外的装置，如反推装置和消声装置。
A
For turbine engines, exhaust includes units external to the basic engine such as thrust reverser and noise suppressor.
B
For turbine engines, exhaust includes units inside the basic engine such as thrust reverser and noise suppressor.
C
For turbine engines, exhaust includes units external to the basic engine such as propeller and noise suppressor.
答案解析
正确答案：A
