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【简答题】
按照要求设计如下电路:电路中有两台电动机,启动顺序为电动机M1先启动,M2才能启动。停止时M2先停止,M1才能停止。 其中控制M1启动的按是SB1,控制M1停止的按是SB,控制M2启动的按是SB2,控制M2停止的按是SB3
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举一反三
【单选题】Which statement is true regarding proxy ARP？（）
A.
Proxy ARP is enabled by default on stand-alone JUNOS security devices.
B.
Proxy ARP is enabled by default on chassis clusters.
C.
JUNOS security devices can forward ARP requests to a remote device when proxy ARP is enabled.
D.
JUNOS security devices can reply to ARP requests intended for a remote device when proxy ARP is enabled
【简答题】A woman uses communication to explore and _________ her thoughts.
【简答题】闻一多先生称赞( )为“时代的鼓手”。
【多选题】Which two statements are true regarding proxy ARP？（）
A.
Proxy ARP is enabled by default.
B.
Proxy ARP is not enabled by default.
C.
JUNOS security devices can forward ARP requests to a remote device when proxy ARP is enabled.
D.
JUNOS security devices can reply to ARP requests intended for a remote device when proxy ARP is enabled
【多选题】ARP Proxy主要是通过代理的方式来解决网络互通的问题,下面对于ARP Proxy说法正确的是:
A.
路由式ARP Proxy解决了同一网段不同物理网络上主机的互通问题
B.
VLAN内的ARP Proxy可以解决相同VLAN内，配置了用户隔离后的网络互通
C.
可以在superVLAN对应的VLANif接口启动VLAN间的Proxy ARP功能，用于实现SuperVLAN间的互通
D.
VLAN间的ARP Proxy可以解决不同VLAN间主机的三层互通问题
【单选题】A woman uses communication to explore and _________ her thoughts.
A.
organize
B.
initiate
C.
understand
D.
discuss
【单选题】The writer uses the Australian woman’s story to show that _____.
A.
an infection can cause you to lose your hearing
B.
having good hearing is very important
C.
people should not use cotton swabs to clean their ears
D.
Australian people use swabs a lot
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