A container holds 8 pints of a solution which is 25% acid. I

题目
单选题
A container holds 8 pints of a solution which is 25% acid. If 2 quarts of pure acid are added to the container, what percent of the resulting mixture is acid? (1 quart=2 pints)
A

50

B

20

C

40

D

45

E

35

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相似问题和答案

第1题:

以下程序的输出结果是_____。 include class object {private:int val; public:objec

以下程序的输出结果是_____。

include<iostream.h>

class object

{ private:

int val;

public:

object( ) ;

object(int i) ;

~object( ) ;};

object: :object( )

{ val=0;

cout < < "Default constructor for object" < < endl;}

object: :object(int i)

{ val=i;

cout < < "Constructor for object" < < val < < endl;}

object: :~object( )

{ cout < < "Destructor for object" < < val < < endl;}

class container{ private:

object one;

object two;

int data;

public:

container( ) ;

container(int i,int j,int k) ;

~container( ) ;};

container: :container( )

{ data=0;

cout < < "Default constructor for container" < < endl;}

container: :container(int i,int j,int k) :two(i) ,one(j)

{ data=k;

cout < < "Constructor for container" < < endl;}

container: :~container( )

{ cout < < "Destructor for container" < < endl;}

void main( )

{ container anObj(5,6,10) ;}


正确答案:Constructor for object6 Constructor for object5 Constructor for container Destructor for container Destructor for object5 Destructor for object6
Constructor for object6 Constructor for object5 Constructor for container Destructor for container Destructor for object5 Destructor for object6 解析:C++语言中的构造函数和析构函数分别是在声明对象时和对象调用完毕后调用,本题中的调用就是这样成对出现的。

第2题:

●Storage differs from memory ,which can hold these items permanently(永久的),whereas memory holds these memory holds items only ()。()A.temporarily B.last C. permanently D.deport


正确答案:A
外存储器与内存储器不同,外存储器能永久保存数据而内存储器仅临时保存。

第3题:

The two parts reached no solution on the final item________

A.which is the Mark 2 project.

B.which I would like you to have.

C.that the process can be made simpler.

D.that values his new ideas.


参考答案:A

第4题:

Bulk cargo refers to ______.

A.cargo which occupies a large volume of space

B.cargo which requires refrigeration

C.cargo which is very dense

D.homogeneous cargo not enclosed in a container


正确答案:D
散货指的是没有包装的同一种货物。

第5题:

The term Longitudinally Separated From by a Complete Hold in the preparation of stowage plan for dangerous cargoes means that ________ .

A.the cargoes shall be stowed in such positions that their vertical distances be greater than 3 meters

B.the cargoes shall be stowed in different holds or compartments

C.the cargoes shall be stowed in different holds or compartments between which there is at least a complete compartment

D.the cargoes shall be stowed in different holds or compartments between which there is at least a complete hold


正确答案:D

第6题:

Which of the following holds multiple connections and is usually maintained by the telephone company?()

A.Demarc

B.IDF

C.MDF

D.110 block


参考答案:A

第7题:

The term Away From in the preparation of stowage plan for dangerous cargoes means that ________ .

A.the cargoes shall be stowed in such positions that their vertical distances be greater than 3 meters

B.the cargoes shall be stowed in different holds or compartments

C.the cargoes shall be stowed in different holds or compartments between which there is at least a complete compartment

D.the cargoes shall be stowed in different holds or compartments between which there is at least a complete hold


正确答案:A

第8题:

Which three resources might be prioritized between competing pluggable databases when creating amultitenant container database plan (CDB plan) using Oracle Database Resource Manager?()

A. Maximum Undo per consumer group

B. Maximum Idle time

C. Parallel server limit

D. CPU

E. Exadata I/O

F. Local file system I/O


参考答案:C, D, F

第9题:

______is one of four uprights comprising a cell in a containership into which a container fits exactly.These uprights hold the container in position.

A.stanchion

B.shore

C.cellular doublebottom

D.Ceil guide


正确答案:D
箱格导轨式由四个支柱组成的,集装箱船上每个单元内能准确的装入一个集装箱,支柱用于固定集装箱的位置。

第10题:

Mentalism holds that a human being possesses a mind which has consciousness, ideas, etc., and the mind can influence the()of the body.
behavior

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