What are four main components of a task?
What are four main components of a task?
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Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because________.A.The direction of pressure on the journal in four-stroke engine is continuouslyB.positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engineC.four-stroke engines usually utilize a heavier grade of oil than tow-stroke enginesD.Low-stroke engines usually consume less lube oil than four-stroke engines
在该水电站安全监测系统中，数据采集任务(Collect_task)把所采集的数据送入一单缓冲区，计算任务(Calculate_task)从该单缓冲区中取出数据进行计算。以下是利用信号量机制实现两个任务共享单缓冲区的C语言形式化描述程序。请将程序代码中(6)～(9)空缺处以及(10)空缺处的内容填写完整。int sr=0'int (6) ：main(){cobeginCollect_task();Calculate_task();coend}Collect_task(){While(采集工作未完成){采集一个数据，P(se)，将数据送入缓冲区中：(7) ，}}Calculate_task(){While(计算工作未完成){(8) ，从缓冲区中取出数据：(9)进行数据计算送入缓冲区中，}}如果以上程序中“int sf＝0；”语句不小心被改写成“ints{＝-1；”，那么系统运行时将会进入 (10) 状态。
YoucreateanewAutomaticDatabaseDiagnosticMonitor（ADDM）task：instance_analysis_mode_task.ToviewtheADDMreport，youusethefollowingcommand：SQLSELECTdbms_addm.get_report（’my_instance_analysis_mode_task’）FROMdual；YouwanttosuppressADDMoutputrelatingtoSegmentAdvisoractionsonuserSCOTT’ssegments.Whatwouldyoudotoachievethis？（）A.AddafindingdirectivefortheADDMtask.B.AddasegmentdirectivefortheADDMtask.C.AddaparameterdirectivefortheADDMtask.D.DisabletheSegmentAdvisorfromtheAutomaticMaintenanceTask.
阅读以下说明和x86汇编语言代码，根据要求回答问题1至问题3。【说明】在某嵌入式安全监测系统中，对某任务的加工操作需通过数据采集(Collect_task)、计算(Calculate_task)这两个不同的程序段来完成，并且执行程序段Collect_task和Calculate _task的顺序及次数有如下约定：Collect_task(2次)→Calculate_task(1次)→Collect_task(5次)→Calculate_task(4次)→Collect_task(2次)→Calculate_task(2次)表6-22 所示为x86系统部分指令及寄存器说明。采用逻辑尺控制法实现以上要求的汇编程序如下：【汇编程序代码】N EQU (1)RULE EQU (2)CODE SEGMENTASSUME CS：CODESTART： MOV AX，RULEMOV CL，NLOP： SAL AX，1JC (3)Collect： CALL Collect_task ；执行Collect_task程序段JMP (4)Calculate：CALL Calculate_task ；执行Calculate_task程序段NEXT： (5)JNZ (6)MOV AH，4CH ；功能号送入AH寄存器INT (7) ；结束程序运行，中断返回(8)END START请根据试题的要求，将汇编程序代码中(1)～(8)空缺处的内容填写完整。
In the RGB color spaces, each pixel on the screen has a corresponding RGB value which consists of(71)components.A．twoB．threeC．fourD．six
Which of the following statements about take-based language teaching is NOT true?A．Students should be given tasks to perform or problems to solve in the classroom.B．Student are task-driven.C．Task-based language teaching is student-centered.D．Task-based language teaching is teacher-centered.
Which of the folIowing statements about take-based language teaching is NOT true?A．Students should be given tasks to perform or problems to solve in the classroom.B．Students are task-driven.C．Task-based language teaching is student-centered.D．Task-based language teaching is teacher-centered.
The engine has more than 300（ ）,made of a number of different materials.A.compositionsB.ingredientsC.compoundsD.components
下列给字符串二维数组进行赋值的语句中，错误的是（）。A．String s[ ] [ ] = new String [ ] [ ] { { “One “ , “ Two “ }, { “ Three “ , “ Four “ } } ;B．String s[ ] [ ] = { { “ One “ , “Two “},{ “ Three “ , “ Four “ } } ;C．String s[ ] [ ] = new String [ ] [ ] { { “Zero”} , { “ One ” , “Two” , “ Three” , “ Four” } } ;D．String s[ 2] [2 ] = { { “ One ” , “Two”},{“ Three” , “ Four” } } ;
在Linux操作系统中，运行态和就绪态进程的状态被统一为______。A．TASK_RUNNINGB．TASK_INTERRUPTIBLEC．TASK_READYD．TASK_ZOMBIE