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Which statements concerning the relationships between the fo

题目
多选题
Which statements concerning the relationships between the following classes are true？（）   class Foo {  int num；   Baz comp = new Baz（）；   }   class Bar {  boolean flag；   }   class Baz extends Foo {   Bar thing = new Bar（）；   double limit；   }
A

A Bar is a Baz.

B

A Foo has a Bar.

C

A Baz is a Foo.

D

A Foo is a Baz.

E

A Baz has a Bar.

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相似问题和答案

第1题：

Which of the following statements concerning intellectual property is wrong？（）

  • A、Intellectual property is an intangible creation
  • B、Intellectual property in ludes patents，trademarks，copyrights，etc.
  • C、Intellectual property is a visible creation
  • D、There are some agreement sconcerning intellectual property under the WTO

正确答案:C

第2题：

Which four are true？（）

  • A、 Has-a relationships should never be encapsulated.
  • B、 Has-a relationships should be implemented using inheritance.
  • C、 Has-a relationships can be implemented using instance variables.
  • D、 Is-a relationships can be implemented using the extends keyword.
  • E、 Is-a relationships can be implemented using the implements keyword.
  • F、 An array or a collection can be used to implement a one-to-many has-a relationship.
  • G、 The relationship between Movie and Actress is an example of an is-a relationship.

正确答案:C,D,E,F

第3题：

听力原文：M: There are several reasons why careful analysis of financial statements is necessary. What are they?

W: First, financial statements are general-purpose statements. Secondly, the relationships between amounts on successive financial statements are not obvious without analysis. And thirdly, users of financial statements may be interested in seeing how well a company is performing.

Q: What are they talking about?

(17)

A．The methods of financial statements.

B．The necessity of careful analysis of financial statements

C．The relationship among financial statements.

D．The purpose of financial statements.


正确答案：B
解析：男士问的是仔细分析财务报表的必要性的理由，故B选项符合。D项说的是财务报表的目的，并非分析财务报表的目的。

第4题：

多选题
Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)
A

c=d

B

l and k are parallel

C

m and l are perpendicular


正确答案： C,B
解析：
根据题目中的已知信息无法推断出各直线的关系，因此B、C均不正确；而由图示可知，c和d分别是a和b的补角，由于a=b，所以c=d，A项正确。

第5题：

Which four statements are true？（）

  • A、Has-a relationships should never be encapsulated.
  • B、Has-a relationships should be implemented using inheritance.
  • C、Has-a relationships can be implemented using instance variables.
  • D、Is-a relationships can be implemented using the extends keyword.
  • E、Is-a relationships can be implemented using the implements keyword.
  • F、An array or a collection can be used to implement a one-to-many has-a relationship.

正确答案:C,D,E,F

第6题：

Which two statements about the IS -IS routing protocol are true?（）

  • A、IS - IS is capable of supporting IPv4 and IPv6.
  • B、IS - IS is only capable of supporting IPv4 and CLNS.
  • C、IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.
  • D、IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.
  • E、Level 1 routers learn about paths within the area of which they are a part.
  • F、Level 2 routers learn about paths both within areas and between areas.

正确答案:A,E

第7题：

Which statements concerning the relationships between the following classes are true？（）   class Foo {  int num；   Baz comp = new Baz（）；   }   class Bar {  boolean flag；   }   class Baz extends Foo {   Bar thing = new Bar（）；   double limit；   }  

  • A、A Bar is a Baz.
  • B、A Foo has a Bar.
  • C、A Baz is a Foo.
  • D、A Foo is a Baz.
  • E、A Baz has a Bar.

正确答案:C,E

第8题：

Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）  

  • A、 The VERSIONS BETWEEN clause may be used in DML statements.
  • B、 The VERSIONS BETWEEN clause may be used in DDL statements.
  • C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.
  • D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.

正确答案:C

第9题：

单选题
Which of the following statements concerning energy is correct?（）
A

Energy can be created or destroyed

B

Energy may not be transformed

C

The total quantity of energy in the universe is always the same

D

None of the above


正确答案： D
解析： 暂无解析

第10题：

单选题
Which of the following statements concerning cargo is correct?（）
A

Cargoes are any type of goods transported by any type of ships

B

Cargoes are goods transported in bulk

C

Cargoes usually include goods transported in bulk and in containers

D

Cargoes are usually packaged in containers


正确答案： D
解析： 暂无解析

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