These inspection features are mandatory and cannot be changed or deleted without the approval of the FAA Oversight Office that is responsible for the airplane model Type Certificate.
答案解析
解析：
这道题考察的是关于飞机检查特征的规定。根据题干中的描述，这些检查特征是强制性的，并且在没有得到负责飞机型号适航证书的FAA监管办公室的批准下，是不能被更改或删除的。因此，只有选项A符合题意。
举个生动的例子来帮助理解：就好比你的手机有一些系统设置是必须的，比如密码锁或者系统更新，如果你想要更改或删除这些设置，必须得到手机厂商的批准。否则，你是无法随意更改或删除这些必要的设置的。
相关知识点：
检查特征未经批准不得更改
相关题目
Make sure that the fluid that goes through the tube has no bubbles.
Apply a corrosion inhibiting compound into the affected area to stop the corrosion process.
Use caution to assure that probe is as close as possible to antenna base of panel without touching antenna.
The installation of a split scraper ring is also a temporary repair and should be replaced when the nose landing gear is disassembled for other maintenance or overhaul.
Dents are not permitted if they prevent correcct operation of the parts.
Do not use metallic objects which could nick or damage the uplock spring surface.
There are three classes of structure: primary, secondary and tertiary.
Where the paint is sufficiently soft, remove it with a plastic spatula.
Spray lock mechanisms connecting above mentioned components with the corrosion inhibitor.
Without this modification, it is possible that the service life of this unit will be shorter than usual.
