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【单选题】
夹紧力的方向应尽量垂直于主要定位基准面,同时应尽量与(    )方向一致。
A.
退刀    
B.
振动
C.
换刀    
D.
切削力
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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 intece of the PC.
B.
Use the AUX port to locally access the switch from a serial or USB intece 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】On the Catalyst 6500 Series switch, which command is used to establish a console connection to the Firewall Services Module?()
A.
ssh
B.
connect
C.
login
D.
session
【单选题】What command is used to configure a switch as authoritative NTP server ?
A.
switch(config)#ntp 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
【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】The methods used in Asynchronous Transfer Mode(ATM)are switch technology and(72)is used to describe this mode.
A.
cell exchange
B.
message exchange
C.
information exchange
D.
packet exchange
【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  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】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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