A、 Each of the two life vests located at L2 entry door flight crew station is damaged.
B、 Each of the two life vests located at L2 entry door flight crew station is out of time limit.
C、 Each of the two life vests located at L2 entry door flight crew station is out of service.
答案：B
A、 Each of the two life vests located at L2 entry door flight crew station is damaged.
B、 Each of the two life vests located at L2 entry door flight crew station is out of time limit.
C、 Each of the two life vests located at L2 entry door flight crew station is out of service.
答案：B
A. 在制作壳体之前,确保钻头的尖端锋利。
B. 在钻孔之前,确保钻头的尖端锋利。
C. 在钻孔之前,确保电锯的尖端锋利。
A. 护目镜的功能是避免灼伤眼睛。
B. 戴上护目镜以防止伤害眼睛。
C. 放在护目镜上以避免灼伤眼睛。
A. 飞机维修手册或章节至少包括下列信息:说明性信息,包括对维修或预防性维修所需要的飞机特性和数据的说明。
B. 飞机维修手册包括的内容至少有一些说明性信息,其包括对大修或预防性维修所需要的飞机特性和数据的说明。
C. 飞机维修手册或章节不仅包括下列信息,还包括对大修或预防性维修所需要的飞机特性和数据的说明。
D. C.飞机维修手册或章节不仅包括下列信息,还包括对大修或预防性维修所需要的飞机特性和数据的说明。
A. When fuel comes out,you should perpare for fire eliminating.
B. It is necessary to exterminate fire properly when fuel starts to leak.
C. Use a fire extinguisher immediately if there is fuel leakage.
A. 从软管开始弯曲的地方测量软管的弯曲半径。
B. 在软管弯曲的地方开始测量软管的内径。
C. 从软管弯曲的内侧开始测量软管弯曲的角度。
A. Using the wet wing concept,all fuel is stored in three tanks.These three tanks include main tank 1,main tank 2 and center tank.Center tanks are made up of the main wing structure.
B. Using the wet wing concept,all fuel is stored in three tanks.These three tanks include main tank 1,main tank 2 and center tank.These three tanks are made up of the main wing structure.
C. Using the wet wing concept,all fuel is stored in three tanks.These three tanks include main tank 1,main tank 2 and center tank.The primary wing structure consists of main tank 2 and center tank.
A. 它应包含进行验证试验所需的所有信息,以将系统或组件稳定性保持在可接受水平,无需参考其他附加文件。
B. 它应包含所有重要的信息来执行功能测试,以使系统或组件性能保持在可接受水平,无需参考其他附加文件。
C. 为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试验所需的所有信息。
D. B.它应包含所有重要的信息来执行功能测试,以使系统或组件性能保持在可接受水平,无需参考其他附加文件。
E. C.为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试
F. C.为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试验所需的所有信息。
A. 从仪器的前部断开钢索。
B. 从机器的后部连接缆绳。
C. 从仪器的后部断开电缆。
A. If you must apply a strike to open the unit,examine the control linkage.
B. If you must apply an unusual force to open the unit,examine the turnbuckle.
C. If you must apply an unusual force to open the unit,examine the control linkage.
A. The external diameter must be concentric to the internal diameter.
B. The outer radius and the inner radius must be suitable.
C. The exterior radius must be installed on a common shaft with the interior radius.
