53、lf the 'meaning changes, use a different construction.

A. 　 A small child should sit in an unlimited seat.

B. 　 A small child needs to sit in a seat with safety device.

C. 　 A small child could sit in an adult seat.

A. 　 The color of the bottom mark on the plate is amber.

B. 　 You can see the red bottom mark on the board.

C. 　There is no color of the bottom mark on the board.

A. 　 Documents must be temporarily edible.

B. 　 Documents must be readily revisable.

C. 　Documenits must be permanently durable

A. 　 Procedures shall be omitted for coping with cases of smoke and/or fire in the cabin or from an engine in
the following fight segments.

B. 　 Procedures shall be provided for accompany with cases of smoke and/or fire in the cabin or from an
engine in the following flight sectors.

C. 　 Procedures shall be provided for coping with cases of smoke and/or fire in the cabin or from an engine in
the following flight phases.

A. 　将测量误差值控制在正或负 0.2 毫米内。

B. 　误差为正负 0.2 毫米。

C. 　标准公差尺寸为正负 0.2 毫米。

A. 　这会导致组件的机械性能的恶化。

B. 　这会导致组件的机械部件的变形。

C. 　这会导致组件的机械装置碰撞。

A. 　 If as many as 50% of the holes are contaminated, you should clean the display units behinds the holes.

B. 　 The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to
contamination.

C. 　 If contamination causes a blockage of more than 50 percent of the holes, then clean the holes on the rear
of the display units.

A. 　扭力连接组件将齿轮的扭力传递到支柱上。

B. 　支撑轴产生扭转力,并将扭转力通过扭力杆组件传递到减震支柱上

C. 　扭力杆组件将扭力负载从轮轴传递到减震支柱

A. 　 The condition lever is the primary control for start and stop the engine

B. 　 The condition lever is the minor control for starting and stopping the engine.

C. 　 The condition lever is the primary control for starting and stopping the engine.

A. 　 REDUCE FLUID TO THE HYDRAULIC RESERVOIR AS NECESSARY.

B. 　 FILL THE HYDRAULIC RESERVOIR WITH FLUID AS NECESSARY

C. 　 APPLY FLUID TO the HYDRALCIC RESERVOIR AS NECESSARY.