The surge tank drain check valve permits fuel in the surge tank to flow to either main tank 1 or main tank 2.

A. 该数字表明了系统的规模。

B. 该图片显示了系统的结构。

C. 该形状说明了系统的形式。

A. Stop the engine run-up practice.

B. Stop the engine start procedure.

C. Stop the engine ignition project.

A. If the airplane has not been tested for twirl characteristics and recovery methods, a discussion shall be included on the limited conditions for preventing spins and the possible best recovery techniques, and it shall be stated that no testing has been conducted and that the recovery techniques are based on the manufacturer＇s best comment.

B. If the airplane has not been tested for spin characteristics and recovery methods, a discussion of prevention of spins and probable best recovery techniques will be included with a notation that no tests were made and the recovery techniques are based on the best judgment of the manufacturer.

C. If the aircraft has not been expanded for spin features and recovery ways, prevention of spin and possible best recovery techniques are discussed and it is determined that no exams have been performed and that recovery techniques are based on the manufacturer＇s best judgment.

A. During antenna installation, disregard the direction the alignment arrow is pointing.

B. Align the antenna in the opposite direction in consideration of the alignment arrow in installation.

C. When installing the antenna, make sure the alignment arrow is directed towards the front.

A. It changed the volts in the transmitter

B. It changes the electrical currents in the transmitter.

C. It changed the electronic currents in the reciever.

A. 进气道指空气进入压气机前所经过的部分，包括导向叶片、罩环和机匣。

B. 空气进入压缩机部分的进气口部分包括导向叶片、护罩和箱子等项目。

C. 空气进入压缩机部分的进气口部分包括导向叶片、横桅索和箱子等项目。

A. For "emergency", the related failure should be responded immediately, for example, the total engine failure, fire or smoke, sudden cabin pressure lost.

B. An "Emergency" almost including a serious failure that requires later response, such as a total engines failure, flame out or smoke, or rapid cabin pressurization.

C. For "emergency", the related failure should be treated immediately, for example, the total engine is not malfunctioning, fire or smoke, sudden cabin pressure lost.

A. 确保商标完全和表面相连，没有倾斜。

B. 确保标签完全贴在表面上，没有气泡。

C. 确保标记完全附加到表面上，没有凸起。

A. 所有发动机工作的最佳爬升率速度

B. 全发工作的最佳爬升速度

C. 所有发动机工作的最佳爬升角速度

A. 从计算机的前部断开钢索。

B. 从计算机的前部边缘安装数据线。

C. 从计算机的后部安装电缆。