781、如果需要,数据可通过附加特征或特征的简要描述来补充

　If desired. The detail may .be added by simple presentations of additional values or properties.

　The data may be supplemented by brief descriptions of additional characteristics or features if desired.

　If necessary, the detail may supplement some simple descriptions of additional characteristics or properties.

正确答案：B

解析：

解析:注释: desire 期望,需要;necessary 必要。supplement 补充; additional 附加的。simple 简化的;brief 简洁的。

707、If the error is more than 3 deg, calibrate the compass.

706、If possible, always tell your reader what can occur if the safety instruction is not obeyed. 如果可能的话，总是告诉读者如果不遵守安全指示会发生什么。

705、Hydraulic fluid is dangerous for your eyes. 液压油对眼睛有害。

704、Extend and retract the actuator through three full cycles. 伸展和缩回执行机构通过三个完整的周期

703 English is not often the native language of the readers of technical documentation 英语通常不是技术文档读者的母语

702、Do not make a recess of more than 5mm for the studs.

701、 Do a continuity check at the Alternate Exhaust Fan Receptacle.

700、Descriptive Data shall be supplied for standard and optional engine and propeller installations and fueland oil systems

699、 CORROSION INHIBITING COMPOUND MAY BE PRESENT IN CORROSION SUSCEPTIBLE LOCATIONS

698、Corrosion can have a lot of causes.