【判断题】MF47指针式万用表使用完毕,应将转换开关置于交流电压档,数值表转换开关置于“OFF”档或关闭电源。
【判断题】万用表使用完毕,应将转换开关置于交流电压最大挡或者OFF位置上
【判断题】能耗制动的优点是制动准确、平稳,且能量消耗较小( )
【多选题】下列关于运算器的叙述中,正确的是________。
A.
运算器是负责对数据进行算术运算和逻辑运算的部件
B.
算术逻辑单元有两个输入口,其中一个输入口和累加器连接,另一个输入口和状态寄存器连接
C.
通用寄存器组是一组寄存器,运算时用于暂存操作数和数据地址
D.
运算器由算术逻辑运算单元、累加器、状态寄存器、通用寄存器组等组成
【单选题】What does the speaker suggest the readers do if they are not sure about the spelling of a word?
A.
Looking for another word to use instead.
B.
Opening a dictionary and check the spelling.
C.
Writing it the way they think it’s spelled.
D.
Waiting around for someone to tell them the spelling.
【单选题】关于参与者,下列说法中错误的是
B.
参与者可以是实际的人,也可以是其他系统或事物
C.
参与者是系统的一部分,是用例图的重要组成部分
【单选题】What does the speaker suggest the readers do if they are not sure about the spelling of a word?
A.
Look for another word to use instead.
B.
Open a dictionary and check the spelling.
C.
Write it the way they think it's spelled.
D.
Wait around for someone to tell them the spelling.