Do not point the compressed air outlet at your skin.

A. Three computers collect data and put them together on the data link to the display unit.

B. Three computers collect data and put them together on the data upload to the display unit.

C. Three computers collect data and put them together on the data conveyed to the display unit.

A. If the error is more than 3 degrees, calibrate the glide slope.

B. If the error is more than 3 degrees, calibrate the compass.

C. If the error is more than 3 degrees, calibrate the gyroscope.

A. 检查机身蒙皮盖板的底部有无裂纹。

B. 检查底部蒙皮盖板和机身有无裂纹。

C. 检查机身底部蒙皮盖板有无裂纹。

A. 这种防腐剂在华氏109度时融化。

B. 这种密封胶在华氏109度时燃烧。

C. 这种混合物在华氏109度时气化。

A. 盖子朝下的时候，是开关在开位的一种保护。

B. 封面在下面的时候，是开关在开位的保险。

C. 盖子朝下的时候，是开关在开位的保险。

A. Light L4 illuminates within 5 seconds.

B. Light L4 comes on after 5 seconds.

C. Light L4 comes on 5 seconds before.

A. 该规范包括一些新材料或新方法。

B. 该规范包含小型的新材料和新方法。

C. 该规范几乎不包括新材料或新方法。

A. 松开按钮取消冻结模式。

B. 按下按钮取消冻结模式。

C. 按下按钮恢复冻结模式。

A. 所有改版数量和日期都应该从页面上删除。

B. 所有版本号和日期都应该从页面上删除。

C. 所有改版次数和日期都应从页面上删除。

A. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.neither short-term nor long-term.

B. Instructions required for parking or storing the aircraft under normal or abnormal conditions, such as engine removal, aircraft damage, etc., which are used for short-term or long-term under extreme weather conditions.

C. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.either short-term or long-term.