A、 Before drill the hole, make sure that the point of the drill head is sharp.
B、 Prior to drill the hole, make sure that the point of the drill bit is sharp.
C、 Before you make the hole, make sure that the point of the drill bit is sharp.
答案：C
A、 Before drill the hole, make sure that the point of the drill head is sharp.
B、 Prior to drill the hole, make sure that the point of the drill bit is sharp.
C、 Before you make the hole, make sure that the point of the drill bit is sharp.
答案：C
A. 调整车门操作杆，直到其与连接点对齐。
B. 调整车门操作杆，直到其与连接点连接。
C. 调整车门操作锁，直到其与连接点对齐。
A. 燃油在燃烧室内燃烧。
B. 燃油通过喷嘴进入雾化器。
C. 燃油通过雾化器进入燃烧室。
A. 通常，在描述飞机或其系统时，应使用第三人称。例如：前轮配备有摆振阻尼器（减摆器），以防止地面滑行时前轮振颤。
B. 通常，在描述飞机或其系统时，应使用第一人称。例如：前轮配备有摆振阻尼器（减摆器），以防止在地面上滑行时前轮振颤。
C. 通常，在描述飞机或其系统时，应使用第三人称。例如：后轮配备有摆振阻尼器（减摆器），以防止在地面上滑行时后轮振颤。
A. In technical texts, you can use abstractions to make sentiments shorter and easier to read.
B. In technical texts, you can use abbreviations to make sentences shorter and easier to read.
C. In technical texts, you can use abstractions to make sentences shorter and easier to understand.
A. 不要使钢索散开。
B. 不要使电缆扭结。
C. 不要使导线绞缠。
A. Make sure that the movement limits of the flight control surfaces are free.
B. Make sure that the travel ranges of the flight control surfaces are clear.
C. Make sure that the travel limits of the flight control rudders are clean.
A. Flame arrestors make sure excessive heat does not enter the fuel vent system. A clogged flame arrestor causes the pressure relief valve in the surge tank to open. When open, the pressure relief valve becomes another vent for the fuel vent system.
B. Flame cleaners make sure over hot air does not enter the fuel vent system. A blogged flame cleaners force the pressure relief valve in the surge tank to open. When open, the pressure relief valve becomes another vent for the fuel vent system.
C. Flame erasers make sure excessive hot air do not enter the fuel vent system. A condensed flame erasers causes the pressure relief valve in the surge tank open. When open, the pressure relief valve becomes a vent for another fuel vent system.
A. 基本的控制与操作资料描述了飞机各部件和系统的控制和操作的情况，包括所使用的专用程序和限制规定。
B. 基本的控制与运营资料描述了飞机各部门和系统是怎样控制和运营的，包括所申请的专用程序和限制规定。
C. 基本的控制与操作资料描述了飞机各部件和系统是怎样控制和操作的，包括适用的专用程序和限制规定。
A. To make sure that ATC transceivers are in standby mode, you must simulate altitude, otherwise false TCAS signals may occur intermittently.
B. Make sure the ATC transmitters are in standby mode, or false TCAS targets may occur accidentally due to altitude simulation.
C. Make sure that the ATC transponders are in standby mode when you simulate altitude. You can accidentally cause false TCAS targets.
A. To know what you want to say and to use the words that give the wanted meaning shall always be assured.
B. In order to express the meaning that you want, always make sure that you know what you want to say and you use the words.
C. Always make sure that you use what you want to say to express the words with the meaning that you want.
