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【单选题】
当三相负载三角形联结时,线电压和相电压的关系()。
A.
只有负载对称时,相等
B.
负载不对称时,不相等
C.
不论负载是否对称,都相等
D.
线电压是相电压的 倍
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参考答案:
举一反三
【单选题】Travelers in space have to ______ many discomforts in their spaceships.
A.
maintain
B.
persist
C.
endure
D.
sustain
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【单选题】According to the travel Web site, many travelers______staying at the Reliant Hotel in Hanoi.
A.
testify
B.
conclude
C.
recommend
D.
disappoint
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【判断题】烤麸是用面粉制成的
A.
正确
B.
错误
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【简答题】●交换式局域网的核心是 (34) 。局域网交换机可以在交换机的多个端口之间同时建立多个 (35) 。对于交换式以太网的说法不正确的是 (36) 。 (34) A.路由器 B.服务器 C.局域网交换机 D.带宽 (35) A.IP包交换 B.传输层连接 C.并发连接 D.超链接 (36) A.它保留现有以太网的基础设施,而不必把还能工作的设备扔掉 B.以太网交换机有着各类广泛的应用--与现行的中继器...
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【单选题】For many travelers, charter vacations often turn out to cost considerably more than ______.
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they originally seemed
B.
they originally seem to
C.
they seemingly would cost originally
D.
they seemed originally
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【简答题】故障现象:VIP小区2的用户不能上网,但能ping通其TCP/IP配置信息中的网关地址。 故障分析:由于VIP小区2的用户配置的是静态IP地址,而且处在同一网段,共用路由器2上的一个IP地址作为网关地址。用户能ping通其TCP/IP配置信息中的网关地址,间接说明他能ping通路由器 2与三层交换机2相连接口的IP地址,这也进一步说明从该VIP用户到路由器2之间的物理路径是连通的,因此需重点检查路...
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【单选题】For many travelers, security checks are as necessary as they are ____ .
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【单选题】On the desert travelers of t en see rivers and lakes.
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imaginative
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【单选题】路由器和3层交换机工作在( ),其作用是在不同的网络间存储转发分组(数据报),具有IP寻址功能。
A.
物理层
B.
数据链路层
C.
网络层
D.
传输层
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【单选题】The reason why many big hotels are being torn down is that______.
A.
more and more travelers choose to stay in motels
B.
people want to spend their time in a more quiet place
C.
it costs too much money for people to stay in a hotel
D.
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相关题目:
【单选题】Travelers in space have to ______ many discomforts in their spaceships.
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maintain
B.
persist
C.
endure
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sustain
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【单选题】According to the travel Web site, many travelers______staying at the Reliant Hotel in Hanoi.
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testify
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【简答题】●交换式局域网的核心是 (34) 。局域网交换机可以在交换机的多个端口之间同时建立多个 (35) 。对于交换式以太网的说法不正确的是 (36) 。 (34) A.路由器 B.服务器 C.局域网交换机 D.带宽 (35) A.IP包交换 B.传输层连接 C.并发连接 D.超链接 (36) A.它保留现有以太网的基础设施,而不必把还能工作的设备扔掉 B.以太网交换机有着各类广泛的应用--与现行的中继器...
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【单选题】For many travelers, charter vacations often turn out to cost considerably more than ______.
A.
they originally seemed
B.
they originally seem to
C.
they seemingly would cost originally
D.
they seemed originally
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【简答题】故障现象:VIP小区2的用户不能上网,但能ping通其TCP/IP配置信息中的网关地址。 故障分析:由于VIP小区2的用户配置的是静态IP地址,而且处在同一网段,共用路由器2上的一个IP地址作为网关地址。用户能ping通其TCP/IP配置信息中的网关地址,间接说明他能ping通路由器 2与三层交换机2相连接口的IP地址,这也进一步说明从该VIP用户到路由器2之间的物理路径是连通的,因此需重点检查路...
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【单选题】For many travelers, security checks are as necessary as they are ____ .
A.
annoyed
B.
annoying
C.
annoy
D.
annoys
查看完整题目与答案
【单选题】On the desert travelers of t en see rivers and lakes.
A.
imagining
B.
imaginative
C.
imaginable
D.
imaginary
查看完整题目与答案
【单选题】路由器和3层交换机工作在( ),其作用是在不同的网络间存储转发分组(数据报),具有IP寻址功能。
A.
物理层
B.
数据链路层
C.
网络层
D.
传输层
查看完整题目与答案
【单选题】The reason why many big hotels are being torn down is that______.
A.
more and more travelers choose to stay in motels
B.
people want to spend their time in a more quiet place
C.
it costs too much money for people to stay in a hotel
D.
cities have become short of land for building large hotels
查看完整题目与答案
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