A、 除非对系统的理解很有必要,否则不需要显示回流管。
B、 如果没有必要了解系统,则需要完整地显示回流管。
C、 除非需要了解系统,则需要部分地显示回流管。
答案：A
A、 除非对系统的理解很有必要,否则不需要显示回流管。
B、 如果没有必要了解系统,则需要完整地显示回流管。
C、 除非需要了解系统,则需要部分地显示回流管。
答案：A
A. Make sure that the cargo compartment pressure stays constant.
B. Make sure that there is pressure in the cabin.
C. Make sure that the cabin pressure stays constant.
A. Make sure that the tool is available in the following installation.
B. Make sure that the tool is subsequently available for the installation procedure.
C. Make sure that the tool is subsequently available for the installation procedure.
A. 用滑石粉处理该区域。
B. 在该区域涂抹滑石粉。
C. 撒滑石粉在该区域。
A. This example shows that we were only allowed to calculate the data applicable to Type B.
B. The data we are now calculating in this example apply only to Type B unit.
C. The data used for the calculations in this example apply only to type B unit.
A. At the location shown in the figure, waterproof corrosion inhibiting compound has been used on certain aircraft construction. To keep the effectiveness of this protection, reapply the compound in these or other locations periodically.
B. Water displacing corrosion inhibiting compound has applied on certain airplanes structure in the locations in this figure. Periodic reapplication must be applied in these and other locations, so as to maintain effectiveness of this protection.
C. Water displacing anti-seize compound has been applied on certain airplanes construction in the locations in this figure. Periodic reapplication should be utilized in these and other locations, in order to keep effectiveness of the protection
A. If the repair scheme must be changed, the approval of the design authority is hardy got.
B. If the design authority need change the repair scheme, it can get the approval.
C. If it is necessary to change the repair scheme, get the approval of the design authority.
A. maintenance information need to be continually updated
B. maintenance information needs to continually updated
C. maintenance information needs to be continually updated
A. Light L4 illuminates within 5 seconds.
B. Light L4 comes on after 5 seconds.
C. Light L4 comes on 5 seconds before.
A. Use locally made tools for this test.
B. You made a local tool for test.
C. You make a tool locally for test.
A. That portion of the system used to record crew member communication.
B. That portion of the system used to record crew member command.
C. That portion of the system used to record crew member conversation.
