The advantage of container transportation is to（）.

A comprehensive transportation system consists of ( ).

A. airports

B. railways

C. highways

D. water transportation

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) ;}

INTERNATIONAL TRANSPORTATION Transportation plays an important part in international business because goods produced have to be delivered to the buyers abroad, and the delivery of goods is to be made possible by transportayion services. Goods are carried by several means of transportation - on road or rail, by sea or air.And in recent years,combined transportation which is a road-sea-rail carriage has appeared. With the expansion of international trade, the container service has become popular. The use of containers provides a highly effective form. of transportation by road, rail and sea. Basically, about 98% of world trade is carried out by sea transportation.Besides transportation by sea, road, or rail, nowadays in order to speed up delivery, carriage by air has also become popular.

1. Transportation plays an important part in international business because goods produced have to be sent to everywhere in the world.()

2. Usually goods are carried by many ways of transportation.()

3. In recent years, combined transportation which is a road-sea-rail carriage appeared.()

4. With the expansion of international trade, the container service has become popular.()

5. The use of containers gives a very helpful method of transportation by air.()

What purpose does a bridge fitting serve when lashing containers ________．

A.Ties a container stack to the deck

B.Ties a container to the container below it

C.Restrains racking loads

D.Restrains the container against horizontal motion

A.void previous(Container parent)

B.void show(Container parent,String name)

C.void next(Container parent)

D.void first(Container parent)

You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privilegesand execute the following sequence statements:What is the result of the last SET CONTAINER statement and why is it so?（）

A. It succeeds because the PDB_ADMIN user has the required privileges.

B. It fails because common users are unable to use the SET CONTAINER statement.

C. It fails because local users are unable to use the SET CONTAINER statement.

D. If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).

You are a database developer for a container manufacturing company. The containers produced by your company are a number of different sizes and shapes. The tables that store the container information are shown in the Size, Container, and Shape Tables exhibit:

Size

SizeID

SizeName

Height

Container

ContainerID

ShapeID

SizeID

Shape

ShapeID

ShapeName

Measurements

A sample of the data stored in the tables is shown below:

Size Table

SizeID SizeName Height

1 Small 40

2 Medium 60

3 Large 80

4 Jumbo 100

Shape Table

ShapeID ShapeName Measurement

1 Triangle 10

2 Triangle 20

3 Triangle 30

4 Square 20

5 Square 30

6 Square 40

7 Circle 15

8 Circle 25

9 Circle 35

Periodically, the dimensions of the containers change. Frequently, the database users require the volume of a container. The volume of a container is calculated based on information in the shape and size tables.

You need to hide the details of the calculation so that the volume can be easily accessed in a SELECT query with the rest of the container information. What should you do?

A. Create a user-defined function that requires ContainerID as an argument and returns the volume of the container.

B. Create a stored procedure that requires ContainerID as an argument and returns the volume of the container.

C. Add a column named volume to the container table. Create a trigger that calculates and stores volume in this column when a new container is inserted into the table.

D. Add a computed column to the container table that calculates the volume of the container.

A.was taking advantage of

B.take advantage of

C.takes advantage of

D.taking advantage of

The universal lifting spreader is a lifting device used on ______．

A.dockside container cranes

B.shipboard container cranes

C.straddle trucks

D.straddle cranes