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举一反三
【简答题】13-3-3 )有效值为 100V 的 正弦电压加在电感 L 两端时,得电流 ;当电压中 有三次谐波,而有效值仍为 100V 时, 得电流 。 试求这一电压的基波和 三次谐波 电压的 有效值。
【单选题】驱使消费者实行购买行为的内在驱动力是( )
A.
态度
B.
动机
C.
学习
D.
认知
【单选题】Your company has an IPv6 network that has 25 segments. You deploy a server on the IPv6 network.You need to ensure that the server can communicate with all segments on the IPv6 network. What should you...
A.
Configure the IPv6 address as fd00::2b0:d0ff:fee9:4143/8.
B.
Configure the IPv6 address as fe80::2b0:d0ff:fee9:4143/64.
C.
Configure the IPv6 address as ff80::2b0:d0ff:fee9:4143/64.
D.
Configure the IPv6 address as 0000::2b0:d0ff:fee9:4143/64.
【单选题】在采用EPC-50控制器的S型分油机自动控制系统中,其核心组成是( )。
A.
MT50水分传感器
B.
EPC-50型控制箱
C.
电机起动器
D.
分油机活动底盘
【简答题】有效值为100V的正弦电压加在电感L两端时,得电流I=10A,当电压中有3次谐波分量,而有效值仍为100V时,得电流I=8A。试求这一电压的基波和3次谐波电压的有效值。
【单选题】在采用EPC-50控制器的S型分油机自动控制系统中,其核心组成是( )。
A.
MT50水分传感器
B.
EPC-50型控制器
C.
电机起动器
D.
分油机活动底盘
【单选题】You have a server that runs windows server 2008. You need to prevent the server from establishing communication sessions to other computers by using TCP port 25. What should you do?()
A.
From windows firewall, add an exception.
B.
From windows firewall enable the block all incoming connections option.
C.
From the windows firewall with advanced security snap-in, create an inbound rule.
D.
From the windows firewall with advanced security snap-in, create an outbound rule.
【单选题】Your company has an ipv6 network that has 25 segments. You deploy a server on the ipv6 network. You need to ensure that the server can communicate with all segments on the IPv6 network. What should yo...
A.
ConfiguretheIPv6addressasfd00::2b0:d0ff:fee9:4143/8
B.
ConfiguretheIPv6addressasfe80::2b0:d0ff:fee9:4143/64
C.
ConfiguretheIPv6addressasff80::2b0:d0ff:fee9:4143/64
D.
ConfiguretheIPv6addressas0000::2b0:d0ff:fee9:4143/64
【单选题】在采用EPC-50控制器的S型分油机自动控制系统中,阀( )用来控制待分油进入分油机。
A.
V1
B.
V2
C.
V4
D.
V5
【单选题】驱使消费者实行购买行为的内在驱动力是
A.
学习
B.
认知
C.
动机
D.
态度
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