A、 A mixture of fuel and oxygen can cause an explosion.
B、 Fuel and oxygen react with each other to cause explosion.
C、 A mixture of fluid and oxygen can be set on fire.
答案：A
A、 A mixture of fuel and oxygen can cause an explosion.
B、 Fuel and oxygen react with each other to cause explosion.
C、 A mixture of fluid and oxygen can be set on fire.
答案：A
A. Possibly, the incorrect operation will occur due to the contaminated oil jet.
B. Incorrect operation is absolutely resulted from a blocked ignitor.
C. A blocked oil jet can cause incorrect operation.
A. 从油箱内排放大约2升燃油。
B. 向油箱中注入大约2升燃油。
C. 排空油箱，获取约2升燃油。
A. CAP将处理初级和次级机体部件，以及初级和次级系统，以实现初始适航的既定目标。
B. CAP将包括主要和次要机体部件，以及使用主要和次要系统以实现持续适航描述的目标。
C. CAP将关注主级和次级机体部件，以及主级和次级系统，以实现持续适航的既定目标。
A. Provide the pneumatic power for the system.
B. Supply the electrical power for the system.
C. Remove the electrical power of the system.
A. 控制水平安定面/前置平尾位置和移动的系统部分。
B. 控制垂直安定面/鸭翼位置和移动的系统部分。
C. 控制水平/前翼位置和移动的系统部分。
A. One of the safety precautions is to keep the combustible material from the work area at distance of 50ft at least.
B. One of the safety precautions is to keep the flammable material from the work area at distance of 50ft at least.
C. One of the safety precautions is to keep the combustible material from the work area at a minimum distance of 50ft.
A. 拧松气阀螺母一两圈，慢慢释放气压。通过反转减震支柱或拆除单向活门排放液压油。
B. 拧松气阀螺母一两圈释放气压。排放减震柱液压油可以通过拆除单向活门进行。
C. 拧松气阀螺母一两圈缓慢释放液压。液力油排放从减震柱或单向活门处进行。
A. 避免使用这些词来表达他们论证过的意思。
B. 一定要使用这些词的批准的意思。
C. 一定要用这些词来表达他们认可的方法。
A. There is a hard landing on the broken nose landing gear.
B. The landing gear has affected hard landing.
C. The nose landing gear is broken because of hard landing.
A. "紧急"区别于"异常"是因为在飞行中遇到不同的情况。
B. "紧急"与"异常"之间有不同，可能还由于飞行时的情况而有差异。
C. "紧急"情况和"异常"情况之间的区别也可能取决于飞行时的情况。
