2431.Put the upper cam in the position that agrees with the mark you made at removal.

A. 显示器顶部和左侧角落的数字指向相关页面。

B. 显示器左上角的数字代表手册对应页码。

C. 显示器左上角的数字代表相关页面。

A. Wait for the paint to dry completely before polishing it again.

B. Do not apply the second layer of paint if the first layer has dried thoroughly.

C. Let the first layer of paint dry fully before you apply the second layer.

A. Handbooks shall be ready to revise in accordance with the specification.

B. In accordance with the specification,manuals should be easy to revise.

C. Handbooks have been already revised,according to the specification.

A. Prepare for the built-in test.

B. Prepare for the leak test.

C. Prepare for the load test.

A. 它应包含进行验证试验所需的所有信息,以将系统或组件稳定性保持在可接受水平,无需参考其他附加文件。

B. 它应包含所有重要的信息来执行功能测试,以使系统或组件性能保持在可接受水平,无需参考其他附加文件。

C. 为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试验所需的所有信息。

D. B.它应包含所有重要的信息来执行功能测试,以使系统或组件性能保持在可接受水平,无需参考其他附加文件。

E. C.为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试

F. C.为了使系统或组件性能保持在正常水平,而不参考其他附加文件,它应包含执行验证试验所需的所有信息。

A. 拧紧堵头至 6 牛顿。

B. 给堵头磅力矩至 6 牛米。

C. 测量堵头拧紧力为 6 牛顿米。

A. Schematic diagram designers may make a compromise so as to add more details to make the diagram self-explanatory and keep its simplicity at the same time for ease of reading and understanding.

B. In designing schematic diagrams,it may be necessary to pay attention to both detail that is necessary to make the diagram self-explanatory,and simplicity that is essential for ease of reading and understanding.

C. Detail makes the diagram self-explanatory.Simplicity makes it easy to read and understand.It is necessary to consider both of them and make a compromise if needed when designing schematic diagrams.

A. The properties of these sealants prevent corrosion.

B. Corrosion frequently occurs due to the features of these sealants.

C. The properties of these sealants make themselves easily corroded.

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. 表中给出了尺寸。

B. 表在桌子上。

C. 尺寸在图中显示。