Measure the time necessary for the silica gel to absorb the moisture.

A. 冷却组件用来冷却风扇管道中的空气。

B. 点火组件是由来自风扇涵道的空气进行冷却的。

C. 加热组件是在风扇涵道的空气里进行冷却的。

A. 将修理的盖板铺在受损伤的区域。

B. 把修理补片精确地补到损伤区域。

C. 精确的将受损伤的区域围挡起来。

A. The flap angles can not be found in Table 1.

B. The flap angles are stated in Table 1.

C. In Table 1, there are no flap angles.

A. Be sure that the hose is not blocked.

B. Make sure that the tubes have no deformation.

C. Ensure that the pipes are not damaged.

A. The fuselage includes skin, stringers, frames, floor beams, floor, tail cone, and fuselage to wing and tail fittings, etc.

B. The fuselage includes skin, frames, stringers, floor beams, floor, tail cone, and fuselage to wing and empennage fillets, etc.

C. The fuselage includes skin, beams, stringers, floor frames, floor, tail skid, and fuselage to wing and rear fairings, etc.

A. 仅B747刚引进时期，每个月就有4000页必须从手册中删减或增加进手册。

B. 在B747引进时期，仅每个月必须替换或增补的手册就有4000页以上。

C. 在B747刚引进的阶段，仅一个月就需要更换或增加约4000页到手册中。

A. 压力传感器安装在关断活门的下游。

B. 压力衰减器安装在关断活门的上游。

C. 压力传感器安装在隔离活门的下游。

A. Use talcum powder to find external leaks.

B. Use titanium powder to detect external leaks.

C. Use limestone powder to examine internal leaks.

A. Before you use a word, read its definition in the approved meaning column of the dictionary.

B. Before you use a word, read its approved meaning in the definition column of the dictionary.

C. Before you use a word, read its meaning in the approved column of the dictionary definition.

A. Peel the coating from the harness.

B. Strip the insulation from the wire.

C. Stripe the insulation from the harness.