A． stack protocol can be used for(69).

A．job scheduler in Operation System

B．operation of arithmetic expressions

C．removing the latest element inserted

D．removing the earliest element inserted

[单选题]（）can be used for carrying goods to the pointed place automatically.A . Automatic beltB . Automatic conveyorC . Automatic Guided VehicleD . Robot

[多选题]The air waybill can be used for （ ）.A.customs declarationB.the proof of the

[多选题]The air waybill can be used for （ ）.A.customs declarationB.the proof of the

[单选题]Language can be used to refer to contexts removed from the immediate situations of the speaker. This feature is called （）A . displacementB . dualityC . flexibilityD . cultural transmissio

[单选题] In C language, ___(69)___ are used to create variables and are grouped at the top of agram block. (69)A. declarationsB． dimensionsC． commentsD．descriptions

[单选题]A．s mentioned，“grey water”can be used to______.A．wash the carB．water the gardenC．clean the toiletD．dispose of wastes

[单选题]Bridge gauge can be used to measure （） of a diesel engine.A . diameters of journalsB . deflections of crankwebsC . diameters of crankpinsD . none of the above

[单选题]( )statement can perform a calculation and store the result in a variable S

[单选题]N-S diagram can used to substitute conventional program flow Chart．In the following phrases，Which does not belong to the basic control structures that contain?A．sequence structureB．condition StructureC．selection structureD．execution structure

[单选题]In C language,(69) are used to create variables and are grouped at the top of a program block.A．declarationsB．dimensionsC．commentsD．descriptions