5、Timer One库函数中，设置中断回调函数的语句是？ A. Timer1.initialize（Period) B. Timer1.attactInterrupt（timerIsr) C. Timer1.setPeriod（Period) D. Timer1.restart（)
5、Timer One库函数中，设置中断回调函数的语句是？ A. Timer1.initialize（Period) B. Timer1.attactInterrupt（timerIsr) C. Timer1.setPeriod（Period) D. Timer1.restart（)
参考答案和解析
B
相关考题：
关于每个载波所测的接收信号电平(RXLEV)的报告周期描述正确的是() A.在分组空闲模式下，NC_REPORTING_PERIOD_I大于DRX周期，测量报告报告的周期是NC_REPORTING_PERIOD_I除DRX周期后，取最小整数倍的DRX周期时间B.在分组空闲模式，如果NC_REPORTING_PERIOD_I小于DRX周期，报告周期就是DRX周期C.在分组传输模式，测量报告报告周期就是NC_REPORTING_PERIOD_I。D.以上描述都正确
以下正确的说法是A．用户若需调用标准库函数，调用前必须重新定义B．用户可以重新定义标准库函数，若如此，该函数将失去原有含义C．系统根本不允许用户重新定义标准库函数D．用户若需调用标准库函数，调用前不必使用预编译命令将该函数所在文件包括到用户源文件中，系统自动调用
以下关于return语句的叙述中不正确的是( )。A．一个自定义函数中必须有一条return语句B．一个自定义函数中可以根据不同情况设置多条return语句C．如果一个函数有多个return语句，那么不论运行到哪一个return语句，该函数将结束D．没有return语句的自定义函数在执行完最后一条语句时返回到调用处
The cost of a product warranty should be included as an expense in the ( )A. period the cash is collected for a product sold on accountB. future period when the cost of repairing the product is paidC. period of the sale of the productD. future period when the product is repaired or replaced
以下关于return语句的叙述中正确的是( )。A.一个自定义函数中可以根据不同情况设置多条return语句B.一个自定义函数中必须有一条return语句C.定义成void类型的函数中可以有带返回值的retum语句D.没有return语句的自定义函数在执行结束时不能返回到调用处
以下正确的说法是( )。A．用户若需调用标准库函数，调用前必须重新定义B．用户可以重新定义标准库函数，若重新定义，该函数将失去原有含义C．系统根本不允许用户重新定义标准库函数D．用户若需调用标准库函数，调用前不必使用预编译命令将该函数所在文件包括到用户源文件中，系统会自动调用
VHDL中的子程序包含函数和过程两种，下列关于VHDL中的函数和过程的叙述错 误的是(31)。A.函数内部的描述语句不能对函数体外定义的信号或变量赋值B.函数是不可综合的C.过程中的变量需要在每次调羽时初始化D.过程语句体中的顺序描述语句可以对过程语句外的信号赋值
The discount houses were first established in that period of time ________ people‘s purchasing power was low. A. which B. that C. when D. where
汉译英：“原产地；有效期限”，正确的翻译为（ ）。A. place of issue ； Departure time B. place of origin ； Departure timeC. place of issue ； Valid period D. place of origin ； Valid period
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）A、All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.B、All ports will transition temporarily to the learning state for a period equal to the forward delay interval.C、The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.D、The default hello time for configuration BDPUs will be reduced for the period of the max age timer.
When configuring Cisco IOS login enhancements for virtual connections， what is the "quiet period"？（）A、The period of time in which virtual login attempts are blocked， following repeated failed login attemptsB、The period of time in which virtual logins are blocked as security services fully initializeC、A period of time when no one is attempting tolog inD、The period of time between successive login attempts
单选题When the wave period and the apparent rolling period are the same（）.Asynchronous rolling occursBroll period decreasesCroll period increasesDroll amplitude is dampened
单选题How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）AAll ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.BAll ports will transition temporarily to the learning state for a period equal to the forward delay interval.CThe default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.DThe default hello time for configuration BDPUs will be reduced for the period of the max age timer.
单选题When configuring Cisco IOS login enhancements for virtual connections， what is the "quiet period"？（）AThe period of time in which virtual login attempts are blocked， following repeated failed login attemptsBThe period of time in which virtual logins are blocked as security services fully initializeCA period of time when no one is attempting tolog inDThe period of time between successive login attempts
单选题An occulting light is one in which （）.Athe period of darkness exceeds the period of lightBthere is only a partial eclipse of the lightCthe periods of light and darkness are equalDthe period of light exceeds the period of darkness