1105. Note that alterations or repairs to airplane must be accomplished by licensed personnel

Only the certified personnel can complete the modification or repair to the aircraft.

Pay attention that inspections or maintenance work ought to be carried out by mechanics.

Modifications or repairs to aircraft should be achieved by releasing staff.

正确答案：A

设备系统操作理论翻译

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2258. Examine the seal for defects

2257. Dry the surface with a towel

2256. 不要将不同主题的内容放在同一段落中。

2255. 在裸露的金属上涂一薄层密封胶。

2254. Use 14-point uppercase bold for the word WARNING and 10-point uppercase bold for the WARNING TEXT

2253. To prevent unwanted friction, polish the surface

2252. 更换液压油箱时的拆卸步骤可能会分解为以下项目

2251. The word use" is an approved word in the dictionary"

2250. 对系统进行渗漏测试。

2249. These test and inspection equipment and tools are used to make airworthiness determinations on articles