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单选题
每个门的结构接口处都有柔性密封件，可保护金属接口免受气流的损坏。
A
Each door has flexible seals at its structure interface which protect the metal interfaces from damage by the airflow.
B
Each door has flexible seals at its structure interface which protect the metal interfaces from no damage by the airflow.
C
Each door has formalist seals at its structure interface which protect the metal interfaces from damage by the airflow.
答案解析
正确答案：A
相关知识点：
门结构接口，柔性密封护
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