29.Do not let the cable touch the floor and make sure the floor is not wet

A. 　Divide the headwind component by the aircraft speed to get the correction

B. 　Divide the crosswind component by the air speed to get the correction.

C. 　Divide the crosswind component by the aircraft speed to get the correction.

A. 　Manufacturers may delete systems not applicable to their product,anufacturers

B. 　Manufacturers may emit systems not applicable to their product,anufacturers

C. 　Manufacturers may submit systems not applicable to their product.

A. 　It is fine to use alternative materials.

B. 　It is forbidden to use alternative materials.

C. 　The alternative materials are not unserviceable.

A. 　On such conditions,the Introduction should inform the systems which are excluded in the Manual.

B. 　In such cases,the Manual should address all the systems in the Introduction.

C. 　Under such circumstances,the systems that are covered in the Manual should be mentioned in the Introduction.

A. 　The wire must touch the front of the contact.

B. 　The wire must bond the rear of the contact.

C. 　The wire must touch the rear of the contact.

A. 　转动电门使显示出现。

B. 　转动拖把使显示器工作。

C. 转动旋钮使显示消失

A. 　泵安装在 3 号翼肋,黑搓着前翼梁。

B. 　泵安装在 3 号翼肋,位于前翼梁的后部。

C. 　泵安装在 3 号翼粱,位于后翼肋的前面

A. 　If you find metal particles in the reservoir,find their source and repair the broken part,

B. 　If you find metal particles in the pump,find their source and repair the defective part.

C. 　If you find material particles in the pump,find their source and repair the damaged part.

A. 　通过侧面油箱的门获取控制组件。

B. 　通过侧面油箱的孔触摸控制组件。

C. 　通过油箱侧面的开口接近控制组件。

A. 　Clean the surface to ensure there will be good adhesion.

B. 　Clean the surface to ensure firm addition.

C. 　Clean the surface to make sure that the bond is satisfactory.