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单选题
If the air intake flap is not serviceable, do the deactivation procedure of the air inlet valve.
A
If the air intake flap is not serviceable, lock the air inlet valve in the fully open position.
B
Once the air intake flap does not work, activate the air inlet valve.
C
Deactivate the air inlet valve unless the air intake flap is useable.
答案解析
正确答案：C
