A、 If the Halon extinguisher has its lever lock pin lost, you must scale the extinguisher to make sure if it is full.
B、 If the hand lock pin on the Halon fire flask is not there, you must weight the extinguisher to see if it is full.
C、 If the handle lock pin on the Halon extinguisher is not there, you must weigh the extinguisher to find if it is full.
答案：C
A、 If the Halon extinguisher has its lever lock pin lost, you must scale the extinguisher to make sure if it is full.
B、 If the hand lock pin on the Halon fire flask is not there, you must weight the extinguisher to see if it is full.
C、 If the handle lock pin on the Halon extinguisher is not there, you must weigh the extinguisher to find if it is full.
答案：C
A. 向前旋转手柄。
B. 向后移动水平面。
C. 向后移动手柄。
A. 文件应该经常修订。
B. 文件应该易于修订。
C. 文件必须容易理解。
A. 737NG翼展是112.58英尺。
B. 737NG翼尖小翼尺寸为112.58英尺。
C. 737NG停放时大翼间距至少为112.58英尺。
A. Necessary information by manufacturer should be provided in this chapter to maintain, overhaul or major repair the aircraft so as to properly level it during the life of the aircraft.
B. In order to properly level the aircraft when performing repair, overhaul or major repairs during the life of the aircraft, this chapter should provide all considered information by manufacturer.
C. This chapter shall provide that information considered necessary by the manufacturer to properly level the aircraft for any of the various maintenance, overhaul or major repairs which might become necessary during the life of the aircraft.
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.
A. 确保气流不低于10升/分钟。
B. 确保空气流量为10升/分钟。
C. 确保气流不超过10升/分钟。
A. 批准的形容词以其基本形式给出，在实际应用的过程中，在括号标注内其最高级和比较级形式。
B. 批准的形容词以其基本形式给出，在适用的情况下，其比较级和最高级形式要标注在括号内。
C. 形容词会以其批准的基本形式给出，在适当的时候，也可给出其比较级和最高级形式。
A. 辅助燃油箱通常是可移动的油箱。
B. 辅助燃油箱通常是可拆卸的油箱
C. 辅助燃油箱是常规的可拆卸的油箱。
A. Warnings, cautions and notes may be used to highlight or emphasize important points.
B. Highlight or underline the key points with alerts, attentions and comments.
C. Alerts, cautions and comments can be used to protrude or underline the key points.
A. Oxygen occurs occasionally.
B. Oxidation occurs very easily.
C. Oxygen happens very easily.
