The figure that the volume of air at BDC is divided by the volume of air at TDC is termed as（）.

[单选题]The abbreviation BDC means （）.A . Boston Diesel CompanyB . base circle diameterC . switch board caseD . bottom dead center

[单选题]The distance from TDC to BDC of the diesel engine is called （）.A . gapB . clearanceC . radiusD . stroke

[单选题]The unmistakable figure with the moustache most probably represents ______.A． those who died in the warB． those who had wonC． an imaginary figureD． the most hated person in the war--Hitler

[单选题]Compressed air is supplied by air compression to （）.A . the air receiversB . the starting valvesC . the cylinder coversD . the distributor

[单选题]（）is the volume for loading goods of the vehicle.A . Vehicle tonnageB . Vehicle sizeC . Vehicle capacityD . Available vehicle capacity

[单选题]Volume Box指的是（　　）。A.棋盘式准直器B.独立准直器C.孔雀系统准直器D.非独立准直器E.多叶准直器

[单选题]The figure below shows a record used for recording information about a named? event.Which of the following statement is incorrect? VAR r:record event:array[1..10] of char; place:array[1..20] of record plname:array[1..15] of char; date: array[1..5] of

[单选题]A．ccording to Figure 3, clasts and matrix particles having diameters greater than or equal to 0.5 mm made up approximately what percent of the total mass of the combined samples?A．13%B．33%C．63%D．83%

[单选题]Is a massive volume of structured and unsteuctured data so large it is difficult to process using traditional database or software technique（ ）.A．Data Processing systemB．Big DataC．Data warehouseD．DBMS

[单选题]Clearance volume scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished （）.A . during the valve overlap periodB . with only the exhaust valve openC . at a pressure below atmosphericD . without cooling the cylinders or pisto