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【单选题】
在下列有短路问题算法的论述中，哪一个是正确的 ？
A.
如果赋权有向图 D 中不含负回路，那么从 v s 到任一点的最短路最多包含 p -2 个中间点，图中其它的任一点，可以在最短路上出现一次以上；
B.
如果赋权有向图 D 中不含负回路，那么从 v s 到任一点的最短路最多包含 p - 1个中间点，图中其它的任一点，不可能在最短路上出现一次以上；
C.
如果赋权有向图 D 中不含负回路，那么从 v s 到任一点的最短路必为初等路，最多包含 p -2 个中间点，图中其它的任一点，不可能在最短路上出现一次以上；
D.
如果赋权有向图 D 中不含负回路，那么从 v s 到任一点的最短路必为初等路，最多包含 p - 1个中间点，图中其它的任一点，不可能在最短路上出现一次以上。
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参考答案：
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【单选题】阅读以下短文,根据文章内容从选项中选出一个最佳答案或判断句子正误: C Online learning is becoming more and more popular nowadays, so it is important to get good learning habits if you join an online class. Here are some suggestions: F...
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One should prepare well for online learning.
B.
One should spend as much time online as in a school.
C.
One should not finish the homework online.
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【单选题】Successful online students think that online learning is _____.
A.
easier than learning in regular classrooms
B.
a fun way to study
C.
less convenient
D.
a convenient way to receive education
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【多选题】车载功率变换器多采用滤波电容作为()和()环节。
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储能
D.
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【单选题】One possible cause of uncertainty about online learning is that_____.
A.
only a half million people are enrolled in online degree programs today
B.
most people are used to a traditional, campus-based education
C.
an online education is not as effective as traditional instruction
D.
most programs offer rolling admissions
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【简答题】《我所敬仰的蔡元培先生》作者是 ,曾任 代理校长。
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【单选题】我国古代诗歌中,常用来指代书信的意象是()。
A.
鸿雁
B.
尺素
C.
西楼
D.
孤云
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【多选题】在山西的著名景点中,属于5A级景区的是
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五台山
B.
云冈石窟
C.
绵山
D.
乔家大院
E.
皇城相府
F.
雁门关
G.
平遥古城
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【单选题】阅读以下短文,根据文章内容从选项中选出一个最佳答案或判断句子正误: C Online learning is becoming more and more popular nowadays, so it is important to get good learning habits if you join an online class. Here are some suggestions: F...
A.
study plan
B.
home schooling
C.
online learning habits
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【单选题】One possible cause of uncertainty about online learning is that______.
A.
only a half million people are enrolled in online degree programs today
B.
most people are used to traditional, campus-based education
C.
an online education is not as effective as traditional instruction
D.
most programs offer rolling admissions
查看完整题目与答案
【单选题】Online learning is good in that ____________.
A.
it is easy to conduct
B.
it is convenient and flexible
C.
it provides more degrees
D.
it teaches more skills
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【单选题】阅读以下短文,根据文章内容从选项中选出一个最佳答案或判断句子正误: C Online learning is becoming more and more popular nowadays, so it is important to get good learning habits if you join an online class. Here are some suggestions: F...
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B.
One should spend as much time online as in a school.
C.
One should not finish the homework online.
查看完整题目与答案
【单选题】Successful online students think that online learning is _____.
A.
easier than learning in regular classrooms
B.
a fun way to study
C.
less convenient
D.
a convenient way to receive education
查看完整题目与答案
【多选题】车载功率变换器多采用滤波电容作为()和()环节。
A.
整流
B.
滤波
C.
储能
D.
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查看完整题目与答案
【单选题】One possible cause of uncertainty about online learning is that_____.
A.
only a half million people are enrolled in online degree programs today
B.
most people are used to a traditional, campus-based education
C.
an online education is not as effective as traditional instruction
D.
most programs offer rolling admissions
查看完整题目与答案
【简答题】《我所敬仰的蔡元培先生》作者是 ,曾任 代理校长。
查看完整题目与答案
【单选题】我国古代诗歌中,常用来指代书信的意象是()。
A.
鸿雁
B.
尺素
C.
西楼
D.
孤云
查看完整题目与答案
【多选题】在山西的著名景点中,属于5A级景区的是
A.
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B.
云冈石窟
C.
绵山
D.
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E.
皇城相府
F.
雁门关
G.
平遥古城
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【单选题】阅读以下短文,根据文章内容从选项中选出一个最佳答案或判断句子正误: C Online learning is becoming more and more popular nowadays, so it is important to get good learning habits if you join an online class. Here are some suggestions: F...
A.
study plan
B.
home schooling
C.
online learning habits
查看完整题目与答案
【单选题】One possible cause of uncertainty about online learning is that______.
A.
only a half million people are enrolled in online degree programs today
B.
most people are used to traditional, campus-based education
C.
an online education is not as effective as traditional instruction
D.
most programs offer rolling admissions
查看完整题目与答案
【单选题】Online learning is good in that ____________.
A.
it is easy to conduct
B.
it is convenient and flexible
C.
it provides more degrees
D.
it teaches more skills
查看完整题目与答案
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