A、 When the crossfeed system is open, it is possible for one fuel pump to supply fuel to the two engines.
B、 When the supplying system is open, it is possible for one fuel pump to supply fuel to the two engines.
C、 One fuel pump can supply fuel to two engines,as the supplying system is open.
答案：A
A、 When the crossfeed system is open, it is possible for one fuel pump to supply fuel to the two engines.
B、 When the supplying system is open, it is possible for one fuel pump to supply fuel to the two engines.
C、 One fuel pump can supply fuel to two engines,as the supplying system is open.
答案：A
A. This compound is poisonous.
B. This composite is toxic.
C. This agent is volatile
A. Get approval for all modifications from the design authority.
B. The design department is irresponsible for approving the changes.
C. The arrangement has to be approved by the design department.
A. 检查后再次拉长连杆。
B. 测试后再次移动连杆。
C. 检查后再次调节连杆。
A. 确保襟翼和副翼微调手轮已收回并处于零位置。
B. 确保襟翼收起到零位，且副翼配平手轮处于零位。
C. 确保襟翼收上，副翼配平手轮处于零位。
A. Make sure that the position of the wing flaps is symmetrical.
B. Make sure that the wing flaps must move symmetrically at all time.
C. The wing flaps are moved to the symmetrical position.
A. 确保钢索张力正常。
B. 确保锁定线束绷紧。
C. 确保保险丝有张力。
A. 这些窗户是机身和乘员舱的窗户，包括挡风玻璃和那些安装在门上的窗户。
B. 窗户是指机身和乘员舱的窗户，包括挡风玻璃和安装在门上的窗户。
C. 窗户指位于机身和驾驶舱的窗户，包括风挡和安装在舱门上的窗户。
A. 焊接时请带防护面罩。
B. 在焊接过程中，请使用保护罩。
C. 在焊接的程序中有使用防护屏的要求。
A. 如果杠杆锁定电磁阀在锁定位置失效，你可以移动起落架控制杆到向上的位置与并用杠杆锁定覆盖触发器。触发器缩回控制杆向前的部分，这样它可以清除杠杆锁定机制。
B. 如果起落架控制手柄锁电磁阀在锁定位出现故障，可通过手柄锁超控触发器将控制手柄移动到向上位置。触发器将控制手柄的前半部分收回，这样就解除了手柄的锁定装置。
C. 如果杠杆锁定电磁阀没有处于锁定位置，则在手柄锁定超控触发器情况下将起落架控制手柄移动到向上位置。 触发器将控制杆的前部缩回，从而解除控制杆锁定机制。
A. The function of the rules in this specification is to direct the revising of all materials that are contained in Maintenance Manuals prepared by manufacturers.
B. With respect to format, style and method of presenting for all materials which are contained in Maintenance Manuals prepared by manufacturers, you can refer to the rules that are included in this specification.
C. When presenting format, style and method for rules of this specification, all materials of Maintenance Manuals prepared by manufacturers shall be accorded with.
