A、 If the filters become clogged, send them to the laboratory for analysis of the contamination.
B、 If the filters are surged, send them to laboratory for contamination analysis.
C、 If the contaminant is blocking the filter, the material should be sent to the laboratory for analysis.
答案：A
A、 If the filters become clogged, send them to the laboratory for analysis of the contamination.
B、 If the filters are surged, send them to laboratory for contamination analysis.
C、 If the contaminant is blocking the filter, the material should be sent to the laboratory for analysis.
答案：A
A. Rise the cylinder up its install position.
B. Lift the cylinder above its installed position.
C. Lift the bushings above its installing position.
A. When there are too many positive or subtractive pressure in the fuel tanks,the pressure relief valve eliminates damage to the wing structure.
B. When there is too much plus or minus pressure in the fuel tanks,the pressure relief valve previews damage to the wing structure.
C. The pressure relief valve prevents damage to the wing structure when there is too much positive or negative pressure in the fuel tanks.
A. 给液压系统增压。
B. 给液压系统释压。
C. 给燃油系统释压。
A. 检查流量控制管路，避免节流孔发生堵塞或被污染。
B. 检查节流孔，避免流量控制管路发生堵塞和出现污染物。
C. 检查流量控制孔，确保节流孔无堵塞和污染。
A. 加油活门可以在前起落架减震支柱下部找到。
B. 充气活门位于前起落架减震支柱顶部。
C. 充气活门可以在前起落架顶部的减震支柱上面找到。
A. 描述飞机电源系统时，应说明线束保护功能。
B. 描述飞机电源系统时，应提供线路保护的描述。
C. 描述飞机电源系统时，应说明回路保护。
A. 在每页的右下角输入页数和发行或改版日期。
B. 在每页的底部打印页码和发行或修订日期。
C. 在每页的底部输入页码和发行或修订数据。
A. This program is not available at present.
B. This procedure is not applicable at this time.
C. This program is not reasonable now.
A. 英语单词、复杂的句子结构以及多个含义和缩写词会对读者造成混淆。
B. 复杂的句子结构、多个含义和术语以及多个英语单词会对读者造成混淆。
C. 复杂的句子结构以及英语单词的多重含义和同义词会对读者造成混淆。
A. 用米尺来衡量金属盒的容积。
B. 评测金属规则的维度，来作长远的分级。
C. 用一个带有毫米刻度的金属尺来测量尺寸。
