Put a warning notice in the cockpit to tell persons not to operate the flight controls.
答案解析
解析：
### 题干解析
题干的意思是“在驾驶舱放置警告标识，告知人员不要操作飞控系统。”飞控系统是指飞机的飞行控制系统，包括各种舵面（如副翼、升降舵、方向舵等），这些舵面是用来控制飞机的飞行姿态和方向的。
### 选项分析
- **A. 在驾驶舱放置警告标识，同时告知相关人员不要操作飞控系统。**
- 这个选项提到“飞控系统”，而不是具体的“飞控舵面”。飞控系统是一个更广泛的概念，可能包括多个组件和系统。虽然这个选项传达了警告的意图，但没有明确指向具体的操作对象。
- **B. 在驾驶舱放置警告标识，告知人员不要操作飞控舵面。**
- 这个选项明确指出了“飞控舵面”，这是飞行控制的具体部分。警告标识的目的就是为了防止人员误操作这些关键的控制部件，从而确保飞行安全。因此，这个选项是最符合题意的。
- **C. 在驾驶舱放置警告标识以告知无需操作飞控舵面的人员。**
- 这个选项的表述有些模糊，似乎在暗示某些人员可以操作飞控舵面，而其他人则不需要操作。这可能会导致误解，无法有效传达警告的目的。
### 正确答案
因此，正确答案是 **B**，因为它清晰地传达了警告的意图，明确告知人员不要操作飞控舵面，这是确保飞行安全的重要措施。
### 深入理解
为了帮助你更好地理解这个知识点，我们可以联想一下日常生活中的类似情况。
想象一下，你在一个厨房里，正在准备一顿大餐。厨房里有很多刀具和热锅，如果没有警告标识，可能会有人误用刀具或者碰到热锅，导致受伤。为了避免这种情况，你会在厨房里贴上警告标识，提醒大家“请勿随意使用刀具”或者“注意热锅”。这样做的目的是为了保护每一个人，确保厨房的安全。
同样，在飞机的驾驶舱中，飞控舵面是非常敏感和重要的控制部件，任何误操作都可能导致严重的后果。因此，放置明确的警告标识，告知人员不要操作这些舵面，是确保飞行安全的必要措施。
相关知识点：
驾驶舱放标识，告知勿操作飞控
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