487、The difference between the two dimensions must not be more than 0.10mm. 两个尺寸的差值不得超
过 0.10mm。

A. 　飞机燃油系统从中央或主油箱提供增压的燃油。

B. 　飞机燃油供应系统给来自中央或主油箱的燃油增压

C. 　飞机燃油系统提供燃油,这些燃油是从中央或主油箱增压的。

A. 　 CRES causes magnesium, aluminum, or cadmium to corrode when it touches these metals.

B. 　 Stainless steel corrodes once touching magnesium, aluminum or chromium metals.

C. 　 Magnesium, aluminum, or chromium metals shall be protected from the corrosion caused by CRES.

A. 　 Check the cut for gaps that start at its corners.

B. 　 Examine-the opening for cracks that start at its corners.

C. 　 inspect the clearance of gate from the corner.)

A. 　 These tests need no special equipment or facilities except those installed on the aircraft and are like the
tests performed by flight crews.

B. 　 These tests need some special equipment or facilities that are not installed on the aircraft. And these tests
are the same to the tests performed by flight crews.

C. 　 These tests need special equipment or facilities that are installed on the aircraft with the tests performed
by flight crews.

A. 　手册应随时修订,它们可以是活页形式,带有可接受的临时或永久性装订

B. 　手册应易与修订,它们可以是活页形式,带有耐用的线圈夹或永久性装订

C. 　手册应能够修订,它们可以是活页形式,带有通常的多环式或封面或永久性装订

A. 　符合规范的问题应提交给通用航空制造商协会(GAMA)和联邦航空管理局(FAA)解决。

B. 　问题应符合规范,查阅通用航空制造商协会(GAMA)和联邦航空管理局(FAA)得到解决。

C. 　遵守规范的问题应涉及到通用航空制造商协会(GAMA),并提交给联邦航空管理局(FAA)解决

A. 　 This procedure gives you the disassembly process.

C. 　 The assembly process can be found in this section.

A. 　 Do not replace the self-locking nuts with plain nuts.

B. 　 Do not use a general fastener instead of a self-locking one.

C. 　 The general purpose nut is interchangeable with the self-locking nut.

A. 　技术动词既可以用作动词,也可以用作名词。

B. 　技术动词只能用作动词,不能用作名词。
c、技术动词和动词的用法相同,与名词不同。

A. 　如果故障频繁出现,进行系统测试。

B. 　如果故障定期出现进行系统测试。

C. 　如果故障随机出现,进行操作测试。