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【单选题】
如何保证某一台交换机成为整个网络中的根交换机()A.
为该交换机配置一个低于其他交换机的IP地址
B.
设置该交换机的根路径开销值为最低
C.
为该交换机配置一个低于其他交换机的优先级
D.
为该交换机配置一个低于其他交换机的mac地址
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反馈参考答案：
举一反三
【单选题】Excuse me, is this train for London?
A.
It’s too late
B.
Yes，it is.
C.
It doesn’t matter
【简答题】补全对话。 A. That's very kind of you. B. I forgot where I had put it. C. You really should read it. D. they are all out. E. I'm afraid I haven't. F. I haven't had it with me. G. I have a copy of my own. A...
【单选题】恶性肿瘤的三级预防概念,下述正确的是
A.
一级预防指病因预防，是消除或减少可能致癌的因素
B.
二级预防是指改变不良饮食习惯、生活方式
C.
三级预防指早发现、早诊断、早治疗
D.
姑息治疗为二级预防
E.
对症治疗为一级预防
【单选题】My MP4 player isn't in my bag. Where _____ I have put it? [ ]
A.
can
B.
must
C.
should
D.
would
【简答题】Read each
question and choose the correct answer.(You should fill in a,b,c...) a. Who b. Who are c. Where d. When does e. Where do f. What kind of g. Who’s h. Who do i. When is j. Where are k. What 1....
【单选题】Excuse me, this is almost cold.I can't eat it like this.
A.
Sorry about that, let me heat it up for you. Just two minutes.
B.
Really? No-one else has complained.
C.
I'm sorry. I haven't got time to reheat it.
相关题目：
【单选题】My MP4 player isn't in my bag. Where _____ I have put it? [ ]
A.
can
B.
must
C.
should
D.
would
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知识点：
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