【单选题】【消耗次数：1】
22. When a fire ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
①
broke off
②
broke out
③
broke down
④
broke up
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相关题目
【单选题】
When a fire____ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
①
broke off
②
broke out
③
broke down
④
broke up
【单选题】
A fire broke out at the school but the teacher were able to lead the ___________ children to safety.
①
frightened
②
frightening
③
frighten
④
fright
【单选题】
13. A fire broke out at the school but the teacher were able to lead the ___________ children to safety.
①
frightened
②
frightening
③
frighten
④
fright
【单选题】
The reason _____ he was late for the meeting is _____ his car broke down on the road.
①
why; that
②
why; because
③
that; that
④
for which; because
【单选题】
When Ann broke the dish she tried to put the ____ back together.
①
fragments
②
pieces
③
bits
④
slices
【单选题】
When Ann broke the dish she tried to put the _____back together.
①
fragments
②
pieces
③
bits
④
slices
【单选题】
The reason __he was absent from the meeting was _his car broke down on the way.
①
that; because
②
why; that
③
that; that
④
for; that
【单选题】
-I’m sorry I broke your mirror.-Oh, really? ____.
①
It’s OK with me
②
It doesnt matter
③
Don’t be sorry
④
I don’t care
随机题目
【单选题】
下面关于ICMP协议的描述中，正确的是（）。
①
ICMP协议根据MAC地址查找对应的IP地址
②
ICMP协议把公网的IP地址转换为私网的IP地址
③
ICMP协议用于控制数据报传送中的差错情况
④
ICMP协议集中管理网络中的IP地址分配
【单选题】
以下各项中，不是IP数据报操作特点的是（）。
①
每个分组自身携带有足够的信息，它的传送是被单独处理的
②
在整个传送过程中，不需建立虚电路
③
使所有分组按顺序到达目的端系统
④
网络节点要为每个分组做出路由选择
【单选题】
IP电话、电报和专线电话分别使用的数据交换技术是（ ）。
①
电路交换技术、报文交换技术和分组交换技术
②
分组交换技术、报文交换技术和电路交换技术
③
报文交换技术、分组交换技术和电路交换技术
④
电路交换技术、分组交换技术和报文交换技术
【单选题】
在ARP协议中，通常情况下（）说法是错误的。
①
高速缓存区中的ARP表是由人工建立的
②
高速缓存区中的ARP表是由主机自动建立的；
③
高速缓存区中的ARP表是动态的；
④
高速缓存区中的ARP表保存了主机IP地址和物理地址的映射关系。