Data shall be presented as landing distance versus outside air temperature, altitude and wind.
答案解析
解析:
题目说,“Data shall be presented as landing distance versus outside air temperature, altitude and wind.” 意思是数据应当展示着陆距离与外部气温、高度和风的关系。这意味着我们要将这些因素(外部气温、高度和风)作为变量,观察它们如何影响着陆距离。
### 选项解析
**A: 数据应显示外部大气温度、高度和风与着陆距离的关系。**
- **正确。** 这个选项准确地反映了题干的意思。它表明数据的展示应该是着陆距离(因变量)与外部气温、高度和风(自变量)之间的关系。这是正确的表达方式,因为它直接对应了题干中的描述。
**B: 数据应以着陆距离与外界空气温度、高度和风向的关系来表示。**
- **不完全正确。** 这个选项几乎正确,但“风向”有可能与“风”有所不同。在某些情况下,风的方向(风向)确实可能影响着陆距离,但题干中提到的是“风”,通常是指风速而不是风向。
**C: 数据应考虑与外界空气温度、姿态和风的关系。**
- **不正确。** 这个选项中的“姿态”并不在题干的要求中。题干中明确提到了“着陆距离”与“外部气温、高度和风”的关系,而不是“姿态”。所以,这个选项没有正确表达题干的要求。
### 生动例子
想象一下你在机场,准备降落一架飞机。飞机在着陆时的距离会受到几个因素的影响:
1. **外部气温**:如果气温很高,空气会变得稀薄,这可能会使得飞机需要更长的距离才能完全停下。相反,低温时,空气密度较大,飞机可能会需要较短的距离着陆。
2. **高度**:在高海拔机场,由于空气稀薄,飞机的着陆距离通常会增加。低海拔地区则可能需要较短的距离。
3. **风**:顺风(与飞机飞行方向相同)可以帮助飞机更快地停下来,而逆风(与飞机飞行方向相反)则会使飞机需要更长的距离才能完全停下。
### 总结
相关知识点:
着陆距离与温高风的关系
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