A、 The temperature decreases - 0.00198°C per foot from sea level to the altitude at which the temperature is -56.5°C and zero above that altitude.
B、 The temperature gradient from sea level to the altitude at which the temperature is -56.5°C is - 0.00198°C per foot and zero above that altitude.
C、 The temperature drops 0.00198°C per foot from sea level to the altitude at which the temperature is -56.5°C and to zero above that altitude.
答案：B
A、 The temperature decreases - 0.00198°C per foot from sea level to the altitude at which the temperature is -56.5°C and zero above that altitude.
B、 The temperature gradient from sea level to the altitude at which the temperature is -56.5°C is - 0.00198°C per foot and zero above that altitude.
C、 The temperature drops 0.00198°C per foot from sea level to the altitude at which the temperature is -56.5°C and to zero above that altitude.
答案：B
A. 给出控制面板的原理图或图片。
B. 画出娱乐面板的示意图或图片。
C. 提供仪表板的图纸或图片。
A. Do not give vague, general information.
B. Do not provide clear, general information.
C. Do not list complex, valid information.
A. 注意，如果没有正确执行以下步骤，会导致人员伤亡。
B. 警告，如果你不正确听从指挥，则会导致人员伤亡。
C. 如果没有正确遵循警告里的要求，将会导致人员伤亡。
A. When the cumulative revised pages (including back-up pages) exceeds 60% of the total pages of the manual, a reissue should be prepared.
B. If the updated pages, including back-up pages, were less than 60% of the total page of the manual, a new manual should be copied.
C. Up to 60% of total pages (including back-up pages) were accumulated by mistake, the manual should be rewritten.
A. Rapid operation of the accelerometer can cause unexpected movement of the vertical stabilizer.
B. Accidental movement of the compass can cause unwanted operation of the oriental stabilizer.
C. Sudden operation of the gyro can cause unwanted movement of the horizontal stabilizer.
A. 燃油系统部分还包括整体和顶油箱泄露检测及密封作用。不包括的整体或顶尖油箱及燃料电池衬板的结构，也不包括燃料流速传感、传输和/或指示。
B. 燃油系统部分既包括整体和顶部油箱泄露检测及密封，还包括整体或顶部油箱及燃料电池板的结构。但是不包括燃料流速传感、传输和/或指示。
C. 燃油系统部分还包括整体油箱和翼尖油箱泄露检测及密封。不包括整体油箱或翼尖油箱结构及软油箱结构，也不包括燃油流量传感器、传输和/或指示部件。
A. The paper must include a three-looking picture of the unit.
B. The report must inclue a three- view drawing of the unit.
C. The diagram must include a three-side drawing of the unit.
A. Put sealant around each screw hole.
B. Seal each screw hole.
C. Put each screw hole into sealant.
A. 包含大写字母加名词或数字加名词的术语，通常用于描述某物的形状或结构。
B. 包含大写字母加名词或数字加名词的条款，通常用于描述某事的形式或特性。
C. 项目首字母加名词或者数字加名词的，通常要描述某物的外形和构造。
A. 当火警启动时，温度增加并引起灭火器工作。
B. 当火焰开始时，温度增加并造成触发器工作。
C. 当起火时，温度升高并使探测器工作。
