A、 You must inspect the check valve to make certain that the spring holds the check valve open a short distance before installing the duct and check valve assembly.
B、 Before you installing the duct and check valve assembly, you must check the check valve to make sure the spring holds the check valve open a short distance.
C、 You must exam the check valve to ensure the spring holding the check valve open a short distance before mount the duct and check valve assembly.
答案:A
A、 You must inspect the check valve to make certain that the spring holds the check valve open a short distance before installing the duct and check valve assembly.
B、 Before you installing the duct and check valve assembly, you must check the check valve to make sure the spring holds the check valve open a short distance.
C、 You must exam the check valve to ensure the spring holding the check valve open a short distance before mount the duct and check valve assembly.
答案:A
A. The temperature increase results in the tension decreasing in the cables.
B. The temperature increase affect slightly the tension in the cables.
C. The tension in the cables is a crucial factor in the temperature changes.
A. The tank recirculating system lets the air in or out of the fuel tanks if necessary
B. The tank absorbing system lets the air in or out of the fuel tanks as necessary.
C. The tank venting system lets the air in or out of the fuel tanks as necessary.
A. 安装指示器时将其向后方倾斜。
B. 为了安装指示器,应将其向后移动。
C. 安装指示器时将其向前移动。
A. 建立单独的导线标识码,以组建追踪电路(如图5)
B. 建立单独的导线标识码,以协助追踪电路(如图5)
C. 建立单独的导线标识码,以装配追踪电路(如图5)
A. 可以从ABC经销商或工厂客户服务代表处获得相应表格的副本和需要填写条目的说明。
B. ABC经销商或工厂客户服务代表处需获取相应表格的副本和需要填写条目的说明。
C. ABC经销商或工厂客户服务代表处必须提供相应表格的副本和需要填写条目的说明。
A. 维修手册中某些章节的技术资料的编写,需要机身制造商和用于制造整架飞机的各种其他部件的制造商共同奉献和密切计划。
B. 维修手册中某些章节的技术资料的编写,需要机身制造商和整机其他各制造商共同奉献和密切计划。
C. 维修手册中某些章节的技术资料的编写,需要机身制造商和用于制造整机的各种其他部件的制造商共同合作和密切协调。
A. Get ready for pulling airplane.
B. Prepare for mooring airplane.
C. Prepare for towing airplane.
A. 拆下接合表面漆层周图的转接板。
B. 去除转接板接合面周围的底漆涂层。
C. 拆卸转接板来去除接合面周图的面漆。
A. If an AC circuit consists of resistance only, the value of the impedance is the same as the resistance.
B. If an AC circuit consists of impedance only, the value of the capacitance is the same as the impedance.
C. If an DC circuit has capacitance only, the value of the resistance is the same as the capacitance.
A. 后缘襟翼有25个以上的组件。
B. 后缘襟翼超过25个单位。
C. 前缘襟翼超过25个单位。