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单选题
Make sure that you remove all tools, equipment and loose objects from the air intake.
A
Make sure that all tools, equipment and loose objects are not installed on the air intake.
B
Make sure that you keep all tools, equipment and objects that are not fixed in place away from the air intake.
C
Make sure that you remove all tools and equipment, and you loosen objects from the air intake.
答案解析
正确答案：A
