Which function is used to lock a file in FoxPro DBMS?

A．FLOCK( )

B．RLOCK( )

C．LOCK( )

D．LOCK

[单选题]Which function is NOT served by building a prototype?A．It takes the place of the final system.B．It assists in gathering software requirements.C．It assists in estimating the cost of the project.D．It is used as the foundation of the larger projects.

[单选题]Which of the following methods is used to increase the number of processes sharing the CPU? (72) ．(72) A．InterruptB．SchedulerC．Working SetD．Swapping

[单选题]Which of the following terms is used to identify the pressure of the liquid entering a pump?A．Suction headB．Pump headC．Discharge headD．Total head

[单选题]Which of the following is not the function of the Australian parliament？( )

[单选题]Which of the following is not the function of the Australian parliament？( )

[单选题]Which of the following methods is used to increase the number of processes sharing the CPU？A．InterruptB．SchedulerC．SwappingD．Working Set

[主观题]The neighborhood which I used to living in has changed77.___________

[单选题]Which of the units listed is used to combust waste in the engine room?A．BoilerB．IncineratorC．Generator

[单选题]Which of the following drug is used to treat the alcohol withdrawal symptom commonlyA．antipsychotic drugB．MAOIsC．TCAsD．benzodiazepineE．lithium

[单选题]Which of the listed devices may be used as a digital device?A．variable resistorB．diodeC．strain gaugeD．thermistor