2774. 第一步应该始终是工作准备,最后一步应该是收尾或清理。

A. The seal must bond correctly

B. The seal must cure properly

C. The seal should bond correctly

A. 飞行员呼叫开关位于 P19外部电源面板上。该面板位于飞机右侧的前轮上方。

B. 飞行员呼叫开关位于 P19外部电源面板上。该面板位于飞机右侧的前轮舱前方。

C. 飞行员呼叫开关位于 P19表面电源面板上。该面板位于飞机右侧的前轮上方。

A. 确保正确安装轴承

B. 确保正确安装机轮

C. 正确的安装轴承

A. Turn the body of the closure assist assembly with a wrench to pull the two thrust reverser doors together until you can engage the latches at the bottom of the doors.

B. Turn the main body of the closing aid with a crowfoot and pull the two throttle reverser doors together until you can connect the bolts at the bottom of the door.

C. Use a wrench to turn the main body of the closing auxiliary assembly and pull the two reverse doors together until you can attach the locks at the bottom of the door.

A. 停止测试2秒钟

B. 2秒后启动测试

C. 2秒后终止测试

A. Monde control panel has three 429 input data buses and two output date buses.

B. The mode control panel (MCP) has two 429 input data buses and two 429 output data buses.

C. The mode control panel (MCP) has the same number of input and output data buses.

A. I remember the whole thing for it happened yesterday.

B. I remember the whole thing as if it happened yesterday.

C. I remember the whole thing similar it happened yesterday.

A. 使用规定的液压油来给液压油箱加。

B. 使用特殊的液压油来给液压油箱加油。

C. 使用剩下的液压油来给液压油箱加油。

A. Open the control valve (13), close the control valve (20) and manually operate the oil pump(17) to empty the system.

B. Open the control valves (13) and(20) and operate the hand pump(17) to bleed the filling system.

C. Open the control valves (13) and(20) and manually operate the air inlet pump (17) for filling.

A. Both 28v dc and 115v are supplied to the ignition system.

B. Either 28v dc or 115v is supplied to the ignition system.

C. Only 28V dc power is supplied to the ignition system.