A、 When this material comes into contact with hot surfaces,it emits hazardous fumes.
B、 Contact between hot surfaces and this material results in the release of harmful heat.
C、 Dangerous fumes are consumed by this material upon contact with hot surfaces.
答案：A
A、 When this material comes into contact with hot surfaces,it emits hazardous fumes.
B、 Contact between hot surfaces and this material results in the release of harmful heat.
C、 Dangerous fumes are consumed by this material upon contact with hot surfaces.
答案：A
A. Utilizing an airplane as intended by the manufacturer and sound inspection and maintenance practices is basis that assures the airplane remains airworthy and safe to operate.
B. One of the basis for assuring the airplane remains airworthy and safe to operate is sound inspection and maintenance practices and forms.
C. Utilizing an airplane as intended by the manufacturer is the only basis for assuring the airplane remains airworthy and safe to operate.
A. Data and parameters are gathered by three computers from the systems and put together on the data link to the display unit.
B. Data and parameters are generated by three computers in the system and are displayed on the display unit through the data link.
C. After analyzing the data and parameters from the system,three computers send the final result to the data link for display.
A. 可用燃油是指飞机飞行中使用的燃油。
B. 可用燃油是指可供飞行计划使用的燃油。
C. 飞行计划使用的燃油包含可用燃油。
A. 将 O 形环安装在锥形轴承的内部凹槽中。
B. 将 O 形环安装在圆柱形轴承的中部凹槽中。
C. 将 O 形环安装在球形轴承的内部凹槽中。
A. 环境系统包括的那些装置和部件,提供增压、加热、冷却、湿度控制和过滤,并对压力密封的机身区域的通风空气进行处理。
B. 通风系统包括的装置和部件可以用于加压、加热、冷却,湿度控制、处理空气,从而为压力密封内区域通风。
C. 循环系统包括那些装置和部件,提供释压、加热、冷却、温度控制、压缩和处理空气,来为压边封严条内的区域通风。
D. B.通风系统包括的装置和部件可以用于加压、加热、冷却,湿度控制、处理空气,从而为压力密封内区域通风。
E. C.循环系统包括那些装置和部件,提供释压、加热、冷却、温度控制、压缩和处理空气,来为压边封严条内的区域通风。
A. If as many as 50% of the holes are contaminated,you should clean the display units behinds the holes.
B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.
C. If contamination causes a blockage of more than 50 percent of the holes,then clean the holes on the rear of the display units.
A. 所有射程距离应以海里为单位表示。
B. 所有航程值应以海里为单位。
C. 所有射程距离应以海里为单位。
A. 如果温度值可能超过允许的限度,降低功率。
B. 如果温度值可能超过允许的限度,切断电源。
C. 如果温度值可能超过最大限度,减少用电。
A. The STE dictionary gives an approved alternative that has a different part of speech.
B. The STE dictionary gives an approving alternative word has a different word class.
C. The English dictionary gives an approved alternative word with a different part of speech.
A. In technical texts,you can use abstractions to make sentiments shorter and easier to read.
B. In technical texts,you can use abbreviations to make sentences shorter and easier to read.
C. In technical texts,you can use abstractions to make sentences shorter and easier to understand.
