A、 在铝合金部件上不要使用藏红花布,它含有氧化铁,在铝合金部件上会造成划痕。
B、 在铝质部件上不要使用细砂布,细砂布含有氧化铁,在铝质部件上会造成腐蚀。
C、 在铝合金部件上不要使用细砂布,细砂布含有氧化铁,在铝合金部件上会造成腐蚀。
答案：B
A、 在铝合金部件上不要使用藏红花布,它含有氧化铁,在铝合金部件上会造成划痕。
B、 在铝质部件上不要使用细砂布,细砂布含有氧化铁,在铝质部件上会造成腐蚀。
C、 在铝合金部件上不要使用细砂布,细砂布含有氧化铁,在铝合金部件上会造成腐蚀。
答案：B
A. 如果破环只针对中心轮毂,这个机轮是可以使用的。
B. 如果只损坏中间的胎面,这个轮胎是可以使用的。
C. 如果只伤及中间的纹理,这个轮胎是可维护的。
A. OEUs 将主汇流条上的 5V 交流电转换成 115V 交流电以供给排呼叫灯和 12V 交流电的阅读灯。
B. OEUs 将来自主汇流条的 115V 交流电转换成用于排呼叫灯的 5V 交流电和用于阅读灯的 12V 交流电。
C. OEUs 将来自主汇流条的 115V 交流电转换成 5V 和 12V 的直流电,用于排呼叫灯和阅读灯。
D. B.OEUs 将来自主汇流条的 115V 交流电转换成用于排呼叫灯的 5V 交流电和用于阅读灯的 12V 交流电。
E. Us 将来自主汇流条的 115V 交流电转换成 5V 和 12V 的直流电,用于排呼叫灯和阅读灯。
A. There is enough oil.
B. Some oil must be drained.
C. More oil must be added.
A. The aircraft safety should be ensured.
B. The flight safety must be assured.
C. The navigation safety must be insured.
A. 齿轮箱部分包括齿轮、曲柄、密封件、油箱、冷却器等。
B. 齿轮箱部分包括叶轮、轴、密封件、油泵、冷却器等。
C. 齿轮箱部分包括齿轮、轴、密封件、油泵、冷却器等。
A. Starting system refers to those units,components and associated systems used for igniting the engine.
B. Starting system refers to those units,components and associated systems used for idling the engine.
C. Starting system refers to those units,components and associated systems used for starting the engine.
A. In the event of filler bonding to the tool,dip the tool in cold water.
B. If the filler bonds to the tool,avoid using water to moisten the tool.
C. If the filler sticks to the tool,make the tool wet by applying cold water.
A. Two systems can be energized at a time.
B. Two systems can be engaged at the same time.
C. Two systems can be adopted separately.
A. The System/Chapter,sub-System/Section and Subject Number,the page number and date of issue will disappear in the lower left-hand corner, on the left-hand pages and the review date in the lower right-hand corner.
B. The System/Chapter,sub-System/Section andSubject Number,the pagenumberand dateofissuewillappearinthe lowerleft-handcorner,ontheleft-hand pagesandthe reviewdate inthelowerright-handcorner.
C. The System/Chapter,sub-System/Section andSubject Number,the pagenumberand dateofpublicwillappearinthe lowerleft-handcorner,ontheleft-hand pagesandtherevision dateinthelowerright-handcorner.
A. Due to the incorrect level of pressure,the system will not work.
B. As long as the fluid level remains unstable,the system will fail.
C. Because the fluid level is incorrect,the system will not operate.
