单选题

Servicing includes items such as the inflation or refilling of shock struts, the lubrication of control systems, the sterilizing of potable water systems, etc

A勤务包括的项目例如减震支柱的充气或加油，润滑控制系统，饮用水系统的消毒等；

B勤务包括的项目例如减震支柱的充气或加油，润滑控制系统，饮用水系统的清洁等；

C勤务包括的项目例如减震支柱的充气或加油，润滑控制系统，污水系统的消毒等；

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正确答案：A （备注：此答案有误）

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