皮皮学,免费搜题
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搜题
【单选题】
随着消费商品数量的增加,每单位商品的边际效用( )
A.
先增后减
B.
递增
C.
递减
D.
先增后减
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举一反三
【单选题】WHICH PROCEDURE IS USED TO ACCESS A CISCO 2960 SWITCH WHEN PERFORMING AN INITIAL CONFIGURATION IN A SECURE ENVIRONMENT?
A.
Use the console port to locally access the switch from a serial or USB interface of the PC.
B.
Use the AUX port to locally access the switch from a serial or USB interface of the P
C.
Use Secure Shell to remotely access the switch through the network.
D.
Use Telnet to remotely access the switch through the network.
【单选题】What command is used to configure a switch as authoritative NTP server ?
A.
switch(config)#ntp master 3
B.
switch(config)#ntp peer 193.168.2.2
C.
switch(config)#ntp server 193.168.2.2
D.
switch(config)#ntp source 193.168.2.2
【多选题】7-39. 行举手礼时,通常的做法是()选择一项或多项:
A.
目视对方
B.
举起右臂
C.
掌心向前
D.
左右摆动2--3次
【单选题】在电源的星形连接中线电压( )与其对应的相电压30°。
A.
超前
B.
滞后
【单选题】What command is used to configure a switch as authoritative NTP server ?
A.
什么命令可将交换机配置为权威的NTP服务器?
B.
switch(config)#ntp master 3
C.
switch(config)#ntp peer 193.168.2.2
D.
switch(config)#ntp server 193.168.2.2
E.
switch(config)#ntp source 193.168.2.2
【判断题】《琵琶记》中的蔡伯喈是个不顾家的人。()
A.
正确
B.
错误
【判断题】A switch is used to protect electric circuits from overload.
A.
正确
B.
错误
【判断题】人们根据特定的需要预先为计算机编制的指令序列称为程序。
A.
正确
B.
错误
【判断题】声音形式与不同思想感情的适应能力是指可以自如、随意地使用声音。( )
A.
正确
B.
错误
【单选题】A push-button switch is used to input data to a register. The output of the register is erratic.Which of the following could be the cause of the problem?
A.
The register IC is intermittent and failure is imminent.
B.
The switch contacts are bouncing.
C.
The socket contacts on the register IC are corroded.
D.
The power supply is probably noisy.
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