1100. 若必须靠近发动机排气口,做好耳朵防护措施。

if you must go near the engine exhaust, use ear protection.

if you must go to the engine exhaust, use ear protection.

if it is necessary to approach the engine exhaust, do ear protection.

正确答案：A

设备系统操作理论翻译

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2263. Explain how to recognize potential problems and handle emergencies

2262. Illustrations should be used whenever they will simplify, shorten, or make the text easier to understand

2261. 主要部件的制造商应按本规范的格式提供维护、故障排除、检查和修理资料。

2260. 系统中向座舱提供冷却空气的部分及其控制装置。包括冷却装置、与冷却器操作相关的指示系统等,如适用。不包括温度控制和指示系统。

2259. Calculate the quantity of fuel necessary for the flight

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