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1、下列关于二叉树性质的说法正确的有：（多选） Which sentences of the followings are right about a binary tree's characterization:（There are more than one correct answers）
A.非空满二叉树的结点个数一定为奇数个。 The amount of nodes of a full binary tree with at least one node must be odd.###SXB###B.非完全二叉树也可以用像完全二叉树那样使用顺序存储结构进行存储。Sequential storing structure can also be used to store an incomplete binary tree just like to store a complete binary tree.###SXB###C.当一棵完全二叉树是满二叉树时，叶子结点不一定集中在最下面一层。If a complete binary tree is a full binary tree, it will be possible that leaf nodes is no t on the nethermost layer.###SXB###D.完全二叉树最多只有最下面的一层结点参考答案和解析
非空满二叉树的结点个数一定为奇数个。;当一棵完全二叉树是满二叉树时，叶子结点不一定集中在最下面一层。;一棵非空二叉树的为空的外部结点数目等于其结点数加1。
更多 “1、下列关于二叉树性质的说法正确的有：（多选） Which sentences of the followings are right about a binary tree's characterization:（There are more than one correct answers）A.非空满二叉树的结点个数一定为奇数个。 The amount of nodes of a full binary tree with at least one node must be odd.###SXB###B.非完全二叉树也可以用像完全二叉树那样使用顺序存储结构进行存储。Sequential storing structure can also be used to store an incomplete binary tree just like to store a complete binary tree.###SXB###C.当一棵完全二叉树是满二叉树时，叶子结点不一定集中在最下面一层。If a complete binary tree is a full binary tree, it will be possible that leaf nodes is no t on the nethermost layer.###SXB###D.完全二叉树最多只有最下面的一层结点” 相关考题
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—I think we can use two or more kinds of media together in an advertising campaign. —()
A.It’s true. Two is always better than one.B.That’s quite right. We can attract more people.C.It’s great idea. We need to put in more money then.
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In the following statements about graph operations，which one is NOT correct?A．Finding critical path is an operation on directed graphB．Finding critical path is an operation on undirected graphC．Spanning tree of a graph may not be uniqueD．Minimum spanning tree of a graph may not be unique
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－ Looking at this, if my calculations are correct, we are about five thousand dollars over budget. － That's right.__________.
A It will cost about eight percent more than initially projected ;B We will need another four thousand dollars to cover the cost ;C It's going to cost about five thousand more to complete the first order
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About a business operating cycle, which of the followings is the most accurate?A．12 monthsB．half a yearC．the time span during which cash is used to acquire goods and servicesD．always longer than a year
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which of the following statements is not true about maori population?A. Maori population makes up nearly one-seventh of New Zealand s total population.B. Maori population is younger than the total population.C. Non-Maori women tend to have children earlier than Maori women.D. Maori women tend to have more children than non-Maori women.
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A general purpose MySQL instance is configured with the following options:—log-slow-queries—long-query-time=,0001—log-slow-admin-queries—general-log—log-bin—binlog-format=STATEMENT—innodb-flush-log-at-trx-commit=1Which three statements are true（）。A.The General Query Log records more data than the Binary LogB.The binary Log records more data than the General Query LogC.The Slow Query Log records more data than the General Query LogD.The General Query Log records more data than the Slow Query LogE.The Slow Query Log records more data than the Binary LogF.The Binary Log records more data than the Slow Query Log
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Which three statements are correct about the differences in IS － IS and OSPF?()
A. IS - IS is more CPU - intensive than is OSPFB. For greater fine tuning there are more IS - IS timersC. IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAsD. New additions to the protocol are easily implemented in OSPF but not with IS - ISE. OSPF has more area types than does IS - IS
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Which traversal method for a binary tree does the following Pascal code illustrate? procedure traverse (p:pointer); begin if pnil then begin traverse(p ↑ .left); process(p); traverse(p ↑ .right); end end;A．preorderB．postorderC．reorderD．inorder
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The fact that it has become more onerous or more expensive for one party than he thought ______ sufficient to bring about a frustration．A.is notB.isC.will probably beD.is one of the way by which it is
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When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）A、Loss should be no more than 1 percent.B、One-way latency should be no more than 150 msC、Jitter should be no more than 30 msD、Loss should be no more than 3 percentE、One-way latency should be no more than 150/2=75 msF、Jitter should be no more than 300 ms
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Which three statements are correct about the differences in IS - IS and OSPF?（）A、IS - IS is more CPU - intensive than is OSPFB、For greater fine tuning there are more IS - IS timersC、IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAsD、New additions to the protocol are easily implemented in OSPF but not with IS - ISE、OSPF has more area types than does IS - IS
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Which statement about active and passive surveys is incorrect？（）A、Active mode does not require the client to be specifically confguredB、Passive mode can survey more than one access point at a timeC、Active mode yields signal-quality information such as packet retries and lost packetsD、Active mode requires more time to survey but yields more information results than passive mode does
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Which of the following statements about a Master Catalog is FALSE？（）A、The Master Catalog must be a proper tree.B、The product management tools work with a Master Catalog.C、A product cannot belong to more than one category.D、A store may have more than one Master Catalog.
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A general purpose MySQL instance is configured with the following options: —log-slow-queries —long-query-time=,0001 —log-slow-admin-queries —general-log —log-bin —binlog-format=STATEMENT —innodb-flush-log-at-trx-commit=1 Which three statements are true（）。A、The General Query Log records more data than the Binary LogB、The binary Log records more data than the General Query LogC、The Slow Query Log records more data than the General Query LogD、The General Query Log records more data than the Slow Query LogE、The Slow Query Log records more data than the Binary LogF、The Binary Log records more data than the Slow Query Log
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多选题When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）ALoss should be no more than 1 percent.BOne-way latency should be no more than 150 msCJitter should be no more than 30 msDLoss should be no more than 3 percentEOne-way latency should be no more than 150/2=75 msFJitter should be no more than 300 ms
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单选题The passage tells us that _____.A
HIV was found more than two years earlier than AIDS was identifiedB
people know a little more about HIV than about most other virusesC
AIDS continues to rage more wildly in Africa than in AsiaD
HIV will mainly affect the poor and minority groups in the U.S.
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单选题The fact that it has become more onerous or more expensive for one party than he thought （）sufficient to bring about a frustration.A
is notB
isC
will probably beD
is one of the way by which it is
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多选题Which three statements are correct about the differences in IS - IS and OSPF?（）AIS - IS is more CPU - intensive than is OSPFBFor greater fine tuning there are more IS - IS timersCIS - IS LSP con tains TLV fields and OSPF LSU contains the LSAsDNew additions to the protocol are easily implemented in OSPF but not with IS - ISEOSPF has more area types than does IS - IS
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单选题Which of the following is the best way to combine sentences 2 and 3 (reproduced below)?They simply select the candidate by picking the one whose personality they like the most. They don't realize that choosing a leader is a much more serious task than that.A
They don't realize that choosing a leader is more serious than that, selecting the one whose personality they like the most.B
Selecting the one that has the personality they like most, they don't realize that it’s more serious than that.C
Not realizing how serious a task it is to choose a leader, they simply select the candidate whose personality they like most.D
Because of not realizing how serious it is choosing a leader, they simply select the candidate whose personality they like most.E
Because they simply select the candidate with the personality they like the most, they don't realize that choosing a leader is more serious than that.
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多选题A general purpose MySQL instance is configured with the following options: —log-slow-queries —long-query-time=,0001 —log-slow-admin-queries —general-log —log-bin —binlog-format=STATEMENT —innodb-flush-log-at-trx-commit=1 Which three statements are true（）。AThe General Query Log records more data than the Binary LogBThe binary Log records more data than the General Query LogCThe Slow Query Log records more data than the General Query LogDThe General Query Log records more data than the Slow Query LogEThe Slow Query Log records more data than the Binary LogFThe Binary Log records more data than the Slow Query Log
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单选题Which of the following statements about a Master Catalog is FALSE？（）A
The Master Catalog must be a proper tree.B
The product management tools work with a Master Catalog.C
A product cannot belong to more than one category.D
A store may have more than one Master Catalog.
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多选题Which two statements are true about 802.1s？（）A802.1s supports a reduced number of spanning-tree instances.B802.1s has better convergence times than 802.1w.C802.1s does not support load balancing over the same physical topology.DThe CPU utilization for 802.1s is lower than the CPU utilization for 802.1w.
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多选题Which two statements are true about the primary key constraint in a table？ （）AIt is not possible to disable the primary key constraint.BIt is possible to have more than one primary key constraint in a single table.CThe primary key constraint can be referred by only one foreign key constraint.DThe primary key constraint can be imposed by combining more than one column.EThe non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.
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多选题Which three statements about subqueries are true? （）AA main query can have more than one subquery.BA subquery can have more than one main query.CThe subquery and main query must retrieve data from the same table.DThe subquery and main query can retrieve data from different tables.EOnly one column or expression can be compared between the subquery and main query.FMultiple columns or expression can be compared between the subquery and main query.
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问答题The following sentences test your ability to recognize and usage errors. Each sentence contains either a single error or no error at all. No sentence contains more than one error. The error, if there is one, is underlined and lettered. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence is correct, select choice E. In choosing answers, follow the requirements of standard written English. During the excavation of Pompeii, many people worried that artifacts are being destroyed by care-less techniques, A Bbut the dig continued in spite of their concerns. No error C D E
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单选题Concerning the incinerator’s operation, which of the following is not correct?（）A
Scavenging time should be more 30 seconds before ignitingB
The temperature of sludge tank is 80~100℃C
First igniting the incinerator with diesel oil, when the temperature of health is about 600℃, the sludge oil drawn inD
The ash can be dumped into sea when the distance is more than 3 miles from land
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单选题Which statement is true about Malta’s immigrant population?A
It has a large immigrant population.B
Its immigrant population is more than 3,000.C
Its immigrant population totals 7,000.D
Its immigrant population comes to less than 1% of the island’s 400, 000 population.
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单选题According to the passage, which of the following is NOT TRUE?A
Most voters support the government's effort to help young people to work.B
Some people protest against the government's attempt to force young people to work.C
There are more than one million young people who took part in the program.D
There are more than one million young people who are jobless.
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