Given the following two tables: TAB1 C1 C2 1 Antarctica 2 Africa 3 Asia 4 Australia TAB2 CX CY 5 Europe 6 North America 7 South America Which of the following SQL statements will insert all rows found in table TAB2 into table TAB1?()
A . INSERT INTO tab1 SELECT cx, cy FROM tab2
B . INSERT INTO tab1 VALUES (tab2.cx, tab2.cy)
C . INSERT INTO tab1 VALUES (SELECT cx, cy FROM tab2)
D . INSERT INTO tab1 (c1, c2) VALUES (SELECT cx, cy FROM tab2)
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Given a header in an HTTP request:X-Retries:4 Which two retrieve the value of the header from a given HttpServletRequest request?()
A . Request.getHeader("X-Retries")
B . Request.getIntHeader("X-Retries")
C . Request.getRequestHeader("X-Retries")
D . Request.getHeaders("X-Retries").get(0)
E . Request.getRequestHeaders("X-Retries").get(0)
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Given the following two tables: TAB1 C1 C2 A 11 B 12 C 13 TAB2 CX CY A 21 C 22 D 23 The following results are desired: C1 C2 CX CY A 11 A 21 C 13 C 22 -- --D 23 Which of the following queries will yield the desired results?()
A . SELECT * FROM tab1 INNER JOIN tab2 ON c1=cx
B . SELECT * FROM tab1 LEFT OUTER JOIN tab2 ON c1=cx
C . SELECT * FROM tab1 FULL OUTER JOIN tab2 ON c1=cx
D . SELECT * FROM tab1 RIGHT OUTER JOIN tab2 ON c1=cx
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Given the following code fragment: public void create() { Vector myVect; myVect = new Vector(); } Which of the following statements are true?()
A . The declaration on line 2 does not allocate memory space for the variable myVect.
B . The declaration on line 2 allocates memory space for a reference to a Vector object.
C . The statement on line 2 creates an object of class Vector.
D . The statement on line 3 creates an object of class Vector.
E . The statement on line 3 allocates memory space for an object of class Vector.
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The name New England was given to the northern area ofNorth America by the boss of one of the two Virginia companies.
A . Right
B . Wrong
C . Not mentioned
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Given: http://com.example/myServlet.jsp?num=one&num=two&num=three. Which two produce the output"one, two and three"?()
A . ${param.num[0],[1] and [2]}
B . ${paramValues[0],[1] and [2]}
C . ${param.num[0]}, ${param.num[1]} and ${param.num[2]}
D . ${paramValues.num[0]}, ${paramValues.num[1]} and ${paramValues.num[2]}
E . ${paramValues["num"][0]}, ${paramValues["num"][1]} and ${paramValues["num"][2]}
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Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B?()
A . A must contain all of the characters defined in B
B . A must be Unicode
C . The encoded values in A must match the encoded values in B for all characters defined in B
D . A must be a multibyte character set
E . The encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B
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Consider the Mysql Enterprise Audit plugin. The following event detail is found in the audit log:
https://assets.asklib.com/images/image2/2018080116153463615.jpg
Which two points can be concluded from the given event?()
A . A connection as the user kate was successful
B . A connection failed due to authentication being unsuccessful
C . A connection was attempted via socket rather than TCP
D . A connection was blocked by a firewall or a similar security mechanism
E . A connection failed because the proxy user privileges did not match the login user
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Given a header in an HTTP request: X-Retries:4 Which two retrieve the value of the header from a given ServletRequest request? ()
A . request.getHeader (“X-Retries”)
B . request.getIntHeader (“X-Retries”)
C . request.getRequestHeader (“x-Retries”)
D . request.getHeaders (“X-Retries”).get (0)
E . re request.getRequest Headers (“X-Retries”). Get (0)
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Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B?()
A . A must contain all of the characters defined in B
B . A must be Unicode
C . The encoded values in A must match the encoded values in B for all characters defined in B
D . A must be a multibyte character set
E . The encoded values in A must match the encoded values in B for all numeric and alphabetic character
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When two vessels are in sight of one another and NOT in or near an area of restricted visibility,any of the following signals may be given EXCEPT().
A . a light signal of at least five short and rapid flashes
B . one prolonged,one short,one prolonged,and one short whistle blasts
C . four short whistle blasts
D . two short whistle blast
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3.Now read the following sentences. Check True (T), False (F), or Not Mentioned (NM) in the box given below.The two sisters see each other almost every day.( )
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According to the author, which of the following factors is not given as the reason for water shortage?
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Which of the following aspects need to be given in order to find the lost luggage?
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Which one of the following statements is NOT the suggestion given by psychologists?
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For English names, the family name is put first, followed by the given name.
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Two tensile specimens made of the same material with gauge lengths of 50mm and 100mm are tested. The yield stresses ss1 and ss2, and the elongation ratess5 and s10of the two specimens are given, respectively. Which of the following options is true ___.
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Given the following estimated financial results, value the stock of FishnChips, In
A., using the infinite period dividend discount model (DDM).
· Sales of $1,000,000.
· Earnings of $150,000.
· Total assets of $800,000.
· Equity of $400,000.
· Dividend payout ratio of 60.0%.
· Average shares outstanding of 75,000.
· Real risk free interest rate of 4.0%.
· Expected inflation rate of 3.0%.
· Expected market return of 13.0%.
· Stock Beta at 2.1.
The per share value of FishnChips stock is approximately: (Note: Carry calculations out to at least 3 decimal places.)
B.Unable to calculate stock value because ke
D.$17.91.
E.$26.86.
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Given the following table definition:STOCK: item VARCHAR(30) status CHAR(1) quantity INT p
Given the following table definition:STOCK: item VARCHAR(30) status CHAR(1) quantity INT price DEC(7,2)If items are indicated to be out of stock by setting STATUS to NULL and QUANTITY and PRICE to zero, which of the following statements would be used to update the STOCK table to indicate that all the items whose description begins with the letter "S" are out of stock?()
A.UPDATE stock SET (status = NULL; quantity, price = 0) WHERE item LIKE S%
B.UPDATE stock SET (status, quantity, price) = (NULL, 0, 0) WHERE item LIKE S%
C.UPDATE stock SET status = NULL, SET quantity = 0, SET price = 0 WHERE item LIKE ‘S%‘
D.UPDATE stock SET (status = NULL), (quantity = 0), (price = 0) WHERE item LIKE S%
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Given the following policy, what happens when the 1.1/17 route is evaluated?()
<img src='https://img2.soutiyun.com/shangxueba/ask/17124001-17127000/17125954/deb7ed68c2d7e927abdb1c3b0d607a7b.jpg' />
<img src='https://img2.soutiyun.com/shangxueba/ask/17124001-17127000/17125954/42e9c457823b57ebe153d61d4f5b09e9.jpg' />
A. The route does not match this policy.
B. The route is accepted.
C. The route is rejected.
D. The route is accepted with a metric of 6.
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The two tides in a given day______.
A.never vary in extent
B.may vary in extent
C.only vary in extent at the time of a new moon or a full moon
D.always vary in extent
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The next two questions refer to the following passage:
A pharmaceutical company tested a new painkiller on 1,000 lab rats that were fed large doses of the painkiller for a two-month period. By the end of the experiment, 39 of tile rats had died. The company concluded that the painkiller was sufficiently safe to test on humans.
Which of the following, if true, provides the most support for the pharmaceutical company's conclusion?
A.The amount of painkiller fed to the rats was substantially greater, in relation to body mass, than the dosage any human would take under normal circumstances.
B.Because of the different body chemistry of humans and rats, some compounds can be dangerous for rats but safe for humans, and vice versa.
C.Tests of this same painkiller on dogs showed that 3 out of 50 dogs developed lesions on their livers during the course of the experiment.
D.The researchers found that during the experiment, the rats showed a significantly lower sensitivity to pain than rats do under normal circumstances.
E.In an experiment of this length with this number of rats, it is not unusual for up to 50 rats to die during the experiment for reasons unrelated to the experiment itself.
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Which of the following statements is FALSE based on the given article?
A.The artificial nose does have a big prospect in the fields of police, state security and food-safety assurance.
B.There will be a threat of lowering down people"s privacy if some day sensors are abused.
C.Things remain even when one of the traditional protectors of American liberty is that it has been impossible to search everyone.
D.It is expected to load a single fingernail-size chip with thousands of odor receptors, enough to create a sensor that"s nearly as sensitive as a dog"s nose.
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If the mean score for the juniors were known, which of the following could be calculated from the information given?
I The range of the scores for the seniors
II The median score for the juniors
III The mean score for the seniors
A.None
B.I only
C.III only
D.I and II
E.II and III
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请用完整的句子列出讲稿主体中的要点。 用英文回答。 参考:第七章P89-96 及十三章的例子。 ------------------------------------------- 评分标准: 你喜欢ta讲稿主体部分的要点组织方式和写法吗? 参考下面的清单(即课本P94页清单), ta的要点组织方式和写法是否有助于ta达到演讲目标? Are my main points organized according to one of the following methods of organization? 组织要点时,是否用到了以下某种顺序:时间顺序,空间顺序,话题顺序,因果顺序? Does the body of my speech contain two to three main points? 演讲主体是否包含2-3个要点? Are my main points clearly separate from one another?每个要点之间是否划分明确? As much as