The airplane general arrangement shall be illustrated with a scale line drawing consisting of plan, side and front views presented in a vertical sequence upon a single page.

A. Wait for the paint to dry completely before polishing it again.

B. Do not apply the second layer of paint if the first layer has dried thoroughly.

C. Let the first layer of paint dry fully before you apply the second layer.

A. If you find damaged lines, restore them.

B. If you find loosen cables, fix them.

C. If you find broken wires, repair them.

A. The file must be very easy to rewrite.

B. Every document must be simple to modify.

C. Document must be readily revisable.

A. It is necessary to replace the fitter.

B. It is mandatory to replace the filter.

C. It is prohibited to replace the filler.

A. 停在地面时，在液压系统没有增压的情况下，方向舵的正常位置是低垂位到伺服控制止挡。

B. 在地面模式，在液压系统没有增压的情况下，方向舵的正常位置是向下偏转到伺服控制止动位。

C. 在地面时，在液压系统增压的情况下，方向舵的正常位置是向下偏转到伺服控制止动位。

A. Make a little oil to the threads of the two bolts.

B. Apply a small quantity of oil to the threads of the two bolts.

C. Apply a small quantity of oil to the threads of the two nuts.

A. Before install the software, the plane has to be on the ground and the engines shut down.

B. The airplane must be on the ground with the engines off before you can install software.

C. The aircraft should be on the ground and engines power off before you upload the software.

A. Measure the Outside Air Temperature and the temperature in the cockpit with a thermometer.

B. Do the Outside Air Temperature and the temperature in the cabin with a barometer.

C. Measure the Surrounding Air Temperature and the temperature in the cockpit with a thermometer.

A. Keep all the parts that are serviceable and discard those that are broken.

B. Retain the parts that are functional and discard those that are of poor condition.

C. Keep all the parts that are operational and drop those that are contaminated.

A. 在需要折叠的页面上，折叠时不允许页码可见。

B. 在需要折叠的页面上，以允许页码可见的方式折叠。

C. 在需要折叠的页面上，以这样的态度来折叠，并保证页码可变。