3S技术及其应用进展 知到智慧树答案2024 z40988

第一章 单元测试

1、单选题：
A ( ) is a computer system for capturing, storing, querying, analyzing, and displaying geospatial data.

A:Global Navigation Satellite Systems(GNSS)
B:Geographic Information System (GIS)
C:Remote Sensing (RS)
D:Global Positioning System(GPS)
答案: Geographic Information System (GIS)

2、单选题：
( ) explicitly expresses the spatial relationships between features, such as two lines meeting perfectly at a point.

A:Polygons
B:Raster data
C:Topology
D:Vector data
答案: Topology

3、单选题：
The raster data model uses ( ) to represent spatial features.

A:Point features
B:Line features
C:A grid and grid cells
D:Polygon features
答案: A grid and grid cells

4、多选题：
The vector data model uses ( ) to represent spatial features with a clear spatial location and boundary.

A:Polygons
B:Lines
C:Pixels
D:Points
答案: Polygons ;
Lines ;
Points

5、多选题：
The most expensive part of a GIS project is data acquisition, and two basic options for data acquisition are ( ).

A:Scanning
B:Use existing data
C:Create new data
D:Manual digitizing
答案: Use existing data;
Create new data

6、判断题：
Feature-based query can involve either attribute or spatial data. （ ）

A:对
B:错
答案: 对

7、判断题：
Buffering combines geometries and attributes from different layers to create the output. （ ）

A:错
B:对
答案: 错

8、判断题：
GIS models can be grouped into four general types: binary model，index model，regression model，and mathematic model. （ ）

A:错
B:对
答案: 错

9、判断题：
A zonal operation of raster data analysis operates on a group of cells with same values or like features. ( )

A:对
B:错
答案: 对

10、判断题：
A process model integrates existing knowledge about the environmental processes in the real world and quantifies the processes with a set of relationships and equations. （ ）

A:对
B:错
答案: 对

第二章 单元测试

1、单选题：
A （ ）is a mathematical model of the Earth, which serves as the reference or base for calculating the geographic coordinates of a location.

A:spheroid
B:datum
C:geodetic coordinates
D:geoid
答案: datum

2、单选题：
（ ），an even closer approximation of the Earth, has an irregular surface, which is affected by irregularities in the density of the Earth’s crust and mantle.

A:Spheroid
B:Mean sea level
C:Datum
D:The geoid
答案: The geoid

3、多选题：
Which following projections are conformal projections? ( )

A:Albers equal-area conic projection
B:Mercator projection
C:Lambert conformal conic projection
D:Transverse Mercator projection
答案: Mercator projection ;
Lambert conformal conic projection ;
Transverse Mercator projection

4、多选题：
Which following characteristics belong to Transverse Mercator projection ? ( )

A:Use standard meridian
B:Conformal
C:No length distortion on standard meridian
D:An equivalent projection
答案: Use standard meridian;
Conformal;
No length distortion on standard meridian

5、单选题：
5If I want to preserve direction during projection, I need to choose ( ) map projection.

A:Equidistant
B:Conformal projection
C:Azimuthal projection
D:Equivalent projection
答案: Azimuthal projection

6、判断题：
The principal scale applies only to the standard line in a map projection. （ ）

A:错
B:对
答案: 对

7、判断题：
The projection you choose significantly affects the properties of a large-scale map but has less effect on the properties of a small-scale map. （ ）

A:对
B:错
答案: 错

8、判断题：
8A map projection allows us to work with longitude and latitude values rather plane coordinates. （ ）

A:对
B:错
答案: 错

9、判断题：
9A standard line refers to the line of tangency between the projection surface and the reference globe, including standard parallel and standard meridian. （ ）

A:对
B:错
答案: 对

10、判断题：
The origin of local datum is at the center of the Earth. ( )

A:错
B:对
答案: 错

第三章 单元测试

1、单选题：
The ( ) of a raster refers to the number of bits for storing cell values, a higher ( ) means that the cell can store a wider range of values.

A:Cell size
B:Cell depth
C:Raster format
D:Raster pixels
答案: Cell depth

2、单选题：
The cell ( ) is the size of the area represented by a single cell.

A:depth
B:size
C:range
D:values
答案: size

3、单选题：
Which procedure converts vector data to raster data? ( )

A:Automatic Vectorization
B:Digitization
C:Interactive Tracing
D:Rasterization
答案: Rasterization

4、多选题：
The spatial data could come from ( )。

A:X-Y Coordinates
B:Digital data
C:Paper maps
D:GPS / Remote Sensing
答案: X-Y Coordinates ;
Digital data ;
Paper maps ;
GPS / Remote Sensing

5、多选题：
Which of the following events belong to the continuous view of spatial phenomena （ ）。

A:temperature
B:epicentres of earthquakes
C:elevation
D:soil characteristics
答案: temperature ;
elevation ;
soil characteristics

6、判断题：
Connectivity, adjacency, and containment are topologic relationships. （ ）

A:错
B:对
答案: 对

7、判断题：
The three basic steps of vectorization include line thinning, line extraction, and topological reconstruction. （ ）

A:对
B:错
答案: 对

8、判断题：
Topological relationships between spatial features allow GIS users to perform spatial data query. （ ）

A:对
B:错
答案: 对

9、判断题：
Manual digitizing is similar to heads-up digitizing in the way the lines have to be traced by hand, but it works directly on the computer screen using the scanned raster image as background. （ ）

A:错
B:对
答案: 错

10、判断题：
A wide variety of data used in geographic information systems(GIS) are encoded in vector format. They include digital elevation data, satellite images, digital orthophotos, scanned maps, and graphic files. （ ）

A:对
B:错
答案: 错

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