A、 电瓶为紧急出口的照明电路供电
B、 闭合电瓶电路给应急出口灯供电:
C、 应急出口灯由电瓶电路控制
答案:A
A、 电瓶为紧急出口的照明电路供电
B、 闭合电瓶电路给应急出口灯供电:
C、 应急出口灯由电瓶电路控制
答案:A
A. 每一个点处的宽度和深度值不能小于 30.
B. 每一个点处的宽深值不能大于 30.
C. 每一个点处的宽深比不少于 30
A. 用于密封油箱的所有材料对所有燃油和燃油稳定剂都耐用。
B. 用于密封油箱的所有材料对所有燃油和燃油添加剂都耐用。
C. A 用于密封油箱的所有材料对所有燃油和燃油添加剂都防水。
A. Be careful when you move jet pipes or exhaust cones having insulating blankets.
B. Be careful when you move jet pipes, or exhaust cones have insulating blankets.
C. Jet pipes have insulating blankets. Be careful when you move exhaust cones.
A. The same word "base" can go into different technical name categories when it is used with different
meanings in different contexts.
B. The same word "base”, when it has different meanings in different environment, it can be divided into
different technical name categories.
C. When the word "base" can be divided into different technical noun categories, it has different meanings in
different language environment.
A. 始终遵守如下保持电线处于良好状况的法规
B. 始终遵守预防措施,然后保持电线处子良好状况
C. 始终遵守如下预防措施以保持电线处于良好状况
A. 在执行此程序过程中请使用 12 英寸的套筒扳手。
B. 在此过程中使用 12 英尺套筒手柄。
c、在此过程中使用 12 号扳手手柄。
A. The Federal Aviation Regulations 'require "maximum continuous power.to be used during airframe and
engine combination certification to show obedience with certain criteria.
B. Federal aviation regulations require "maximum continuing power" to be used during the certifying of the
airframe and engine to meet certain criteria.
C. Federal aviation regulations,
"maximum continuous power", are used to show compliance with certain standards.
A. 确保皮托管温度增加至 500 摄氏度以上。
B. 确保机外环境温度增加 500 摄氏度。
C. 确保探头温度增加至、500 摄氏度以上
A. A towel is not used to dry the surface.
B. Use a towel to dry the surface.
C. The surface is dried without a towel.
A. 书写名词词组不能超过三个单词
B. 写出三个单词以上的名词词组
C. 写出的形容词词组要少与二个词