Do not go into the engine test area without approval.

A. Vigorously scrub the surface with a rough, dry cloth.

B. Polish the surface with a soft, damp cloth.

C. Rub the surface quickly with a soft, dry cloth.

A. 为了认识这些要求，纸张厚度限制可能会被考虑。

B. 为了达到这些要求，可能限制纸质隔板使用。

C. 为达到这些要求，可能考虑限制纸张的厚度。

A. 应说明总容量和可用燃油。

B. 应说明能使用的燃油总容量。

C. 应计算总体积和可用燃油量。

A. 测量跑道灯连接的电阻。

B. 校准跑道灯连接的电阻。

C. 复核跑道灯连接的电阻。

A. Turn the adjuster clockwise to increase 60 Deg.

B. Turn the adjuster counterclockwise in increments of 60 Deg.

C. Decrease 60 Deg. to turn the adjuster counterclockwise.

A. That portion of the system is used to indicate the quantity, temperature and pressure of the oil.

B. That portion of the system is used to indicate the quality, temperature and pressure of the oil.

C. That portion of the system is used to indicate the quantity, temperature and pressure of the fuel.

A. The selection of data by manual producers which are included in this section shall be restrained by the concepts contained in the preface of this specification.

B. The selection of data by manual producers included in this section shall be governed by the concepts contained in the preamble to this specification.

C. In this selection, the producer＇s choice of data should be bound by concepts contained in the preamble of this specification.

A. Finish each chapter on a right-hand page.

B. Start each section on a right-hand page.

C. Start each section on a left-hand page.

A. Verify that the bleed air of the ground car can not lead to a wrong information.

B. Make sure that the exhaust from the ground cart does not cause an incorrect indication.

C. Make sure that the wrong indication is caused by the exhaust from the ground cart.

A. If you use folding page, the page number must be invisible when folding.

B. The page number must be viewing if you fold the page.

C. If folded pages are used, the page number must be visible when folded.