755.The purpose of such terms being to provide definitions which are of
practical value for technical communication.

　The intention of such terms is to provide definitions which have
practical value for technical communication.

　The purpose of such terms is to provide definitions with practical value
for technical communication.

　The aim of such terms is to provide definitions for practicing valuable
technical communication.

正确答案：A

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19.确保孔的直径小于规定值。

18.Only approved persons are permitted to stay in this area.

17.IF THE WHEEL TEMPERATURE INCREASES TO MORETHAN 177 DEG., THE CORE OF
THE FUSIBLE PLUG MELTS AND THE TIRE DEFLATES.

16.使压力接头适应皮托管端头。

15.更换磨损超标的组件。

14.A secondary system used to estimate the fuel quantity when the aircraft
is on the ground.

13.这种材料接触热表面时会释放出危险的气体。

12.在这种构型中,液压旁通此活门。

11.All related data shall be grouped in a logical manner.

10.IF FUEL ( ) ON THE GROUND, IMMEDIATELY GO TO A SAFE AREA.

755.The purpose of such terms being to provide definitions which are ofpractical value for technical communication.