A、 The audio input with highest priority will be decreased by amplifier.
B、 The audio input will be increased by amplifier firstly.
C、 The audio input that has the highest priority will be enlarged by amplifier.
答案：C
A、 The audio input with highest priority will be decreased by amplifier.
B、 The audio input will be increased by amplifier firstly.
C、 The audio input that has the highest priority will be enlarged by amplifier.
答案：C
A. The safety procedures are provided by the operators.
B. The safety procedures are provided to the manufacturers.
C. The safety procedures are provided by the manufacturers.
A. Words with lowercase letters are allowed in STE.
B. STE dictionary is permitted to use the UPPERCASE letter word.
C. In STE, a word in capital letters means that it is approved.
A. The operational test of HFS-900D transceivers is an internal functions check of the HF transceiver and it is a BITE test.
B. The BITE test for the HFS-900D transceivers is the operation test that does the inner check of the HF transceiver.
C. The check of the internal functions of the HF transceiver is a BITE test related to HFS-900D transceivers.
A. The Check List may be designed by "Challenge" and "Response" headings or by "Item" and "Condition" headings for two pilot airplanes or for single pilot Airplanes.
B. The Check List for the pilot may be set by "Challenge" and "Response" headings for two airplanes or by "Item" and "Condition" headings for single Airplane.
C. For two pilot airplanes, "Challenge" and "Response" headings may be used on the Check List. For single pilot Airplanes, "Item" and "Condition" headings may be used.
A. It is forbidden to go into the engine test area with approval.
B. Entering the engine test area must not be approved.
C. Approval is a must when entering the engine test area.
解析：解析：这道题考察的是AM96转向架二系悬挂装置的功能。转向架二系悬挂装置是连接轮对轴箱装置和转向架的装置，它的主要作用是支撑和保护轮对轴箱，使其能够在行驶过程中平稳运转。因此，说法“AM96转向架二系悬挂装置就是连接轮对轴箱装置和转向架的装置”是错误的。
举个生动的例子来帮助理解：想象一辆火车在铁轨上行驶，每个轮子都有一个轴箱，而这些轴箱需要通过悬挂装置连接到转向架上。悬挂装置就像是轮子和转向架之间的桥梁，起到支撑和保护的作用，使火车能够平稳行驶。如果没有悬挂装置，轮子和转向架之间的连接将会出现问题，影响火车的运行安全和稳定性。
A. Make sure that there is something in the pipe.
B. Make sure that there is nothing in the pipe.
C. Make sure that blockage is in the pipe.
解析：这道题是关于管道检查的问题。要确保管道没有堵塞，意思就是要确保管道内部没有任何障碍物。所以正确答案是B选项：Make sure that there is nothing in the pipe。
举个生动的例子来帮助理解：想象一下你家的水槽堵了，水无法流出。这时候你需要检查管道，确保没有任何东西堵塞在里面，才能让水顺利流出。如果你检查后发现有东西堵在管道里，那就需要清理掉它，让水可以畅通无阻地流动。所以，确保管道没有任何东西，才能保证水流畅通。这也是为什么正确答案是B选项的原因。
A. Distances shown are based on weak wind.
B. Distances shown are developed with no wind.
C. Distances shown are on the basis of gentle wind.
解析：首先，这道题考察的是对风速对距离的影响的理解。在航空领域，风速对飞行距离有很大的影响。如果风速为零，那么所显示的距离就是在没有风的情况下测量的距离，也就是答案B所说的"Distances shown are developed with no wind"。
举个例子来帮助理解，想象一架飞机在没有风的情况下从A点飞往B点，飞行距离是100公里。但如果有风的话，飞机在风的影响下可能需要调整飞行路线，实际飞行距离可能会有所变化。因此，为了准确测量飞行距离，通常会以零风速为基准来显示距离。
A. Take care to the absence of leakage during the execution of each step in the valve test.
B. Throughout the valve test, verify that there are no obvious signs of leakage at each step.
C. Make certain that no leakage is present as you proceed with each step of the valve test.
A. This Section shall be clearly stated and cross-referenced to the proper paragraph in Section 2 of the Handbook which consists of limitations.
B. This Section contains limitations which shall be clearly stated and cross-referenced to the proper paragraph in Section 2 of the Handbook.
C. The proper paragraph in Section 2 of the Handbook shall describe and cross-reference this Section included in this limitations.
A. The center of gravity moves along with the weight of the wings.
B. The center of gravity moves in relation to forces applied on the wings.
C. The center of gravity moves evenly to the loads of the wings.
