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参考答案：
举一反三
【多选题】适合拍摄人像的定焦镜头有哪些?
A.
50mm
B.
85mm
C.
100mm
D.
135
查看完整题目与答案
【单选题】关于汽车制动跑偏和制动侧滑的关系说法正确的是( )。
A.
自动跑偏不会引起制动侧滑
B.
制动侧滑不会引起自动跑偏
C.
严重的制动跑偏会引起制动侧滑
D.
二者概念上是一致的
查看完整题目与答案
【单选题】什么焦距段的镜头适合拍摄50-100米距离的候鸟而且成像质量高?
A.
24-105mm变焦镜头
B.
70-200mm变焦镜头
C.
600-800定焦镜头
D.
85定焦头
查看完整题目与答案
【单选题】关于定焦镜头和变焦镜头，下列说法错误的是（ ）。
A.
定焦镜头是焦距固定不能改变的镜头
B.
变焦镜头，取景适应范围大
C.
定焦镜头适合拍摄背景清晰的人像照片
D.
变焦镜头，结构复杂，体积和重量更大
查看完整题目与答案
【多选题】定焦镜头适合人像拍摄的特点有()。
A.
镜头孔径大，通光能力强
B.
背景虚化效果好
C.
能够拍摄出大景深的效果
D.
能够营造出小景深的效果
查看完整题目与答案
【单选题】GDP is defined as
A.
the market value of all intermediate goods and services produced within a country in a given time period.
B.
the market value of all final goods and services produced within a country in a given time period.
C.
ven time period.
D.
the market value of all intermediate goods and services produced by a country's citizens within a given time period.
E.
the market value of all final goods and services produced by a country's citizens within a given time period.
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【单选题】GDP is defined as the
A.
value of all goods and services produced within a country in a given period of time
B.
value of all goods and services produced by the citizens of a country, regardless of where they are living, in a given period of time.
C.
value of all final goods and services produced within a country in a given period of time.
D.
value of all final goods and services produced by the citizens of a country, regardless of where they are living, in a given period of time.
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【单选题】下列编码中属于可靠性编码的是【】。
A.
8421码
B.
奇偶校验码
C.
ASCII
D.
右移码
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【单选题】下列( )编码属于变换编码。
A.
DCT
B.
PCM
C.
RLE
D.
D/A
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【单选题】GDP is defined as the market value of all final goods and services produced
A.
by the citizens of a country, regardless of where they live, in a given period of time; this definition focuses on GDP as a measure of total income.
B.
by the citizens of a country, regardless of where they live, in a given period of time; this definition focuses on GDP as a measure of total expenditure.
C.
within a country in a given period of time; this definition focuses on GDP as a measure of total income.
D.
within a country in a given period of time; this definition focuses on GDP as a measure of total expenditure.
查看完整题目与答案
相关题目：
【多选题】适合拍摄人像的定焦镜头有哪些?
A.
50mm
B.
85mm
C.
100mm
D.
135
查看完整题目与答案
【单选题】关于汽车制动跑偏和制动侧滑的关系说法正确的是( )。
A.
自动跑偏不会引起制动侧滑
B.
制动侧滑不会引起自动跑偏
C.
严重的制动跑偏会引起制动侧滑
D.
二者概念上是一致的
查看完整题目与答案
【单选题】什么焦距段的镜头适合拍摄50-100米距离的候鸟而且成像质量高?
A.
24-105mm变焦镜头
B.
70-200mm变焦镜头
C.
600-800定焦镜头
D.
85定焦头
查看完整题目与答案
【单选题】关于定焦镜头和变焦镜头，下列说法错误的是（ ）。
A.
定焦镜头是焦距固定不能改变的镜头
B.
变焦镜头，取景适应范围大
C.
定焦镜头适合拍摄背景清晰的人像照片
D.
变焦镜头，结构复杂，体积和重量更大
查看完整题目与答案
【多选题】定焦镜头适合人像拍摄的特点有()。
A.
镜头孔径大，通光能力强
B.
背景虚化效果好
C.
能够拍摄出大景深的效果
D.
能够营造出小景深的效果
查看完整题目与答案
【单选题】GDP is defined as
A.
the market value of all intermediate goods and services produced within a country in a given time period.
B.
the market value of all final goods and services produced within a country in a given time period.
C.
ven time period.
D.
the market value of all intermediate goods and services produced by a country's citizens within a given time period.
E.
the market value of all final goods and services produced by a country's citizens within a given time period.
查看完整题目与答案
【单选题】GDP is defined as the
A.
value of all goods and services produced within a country in a given period of time
B.
value of all goods and services produced by the citizens of a country, regardless of where they are living, in a given period of time.
C.
value of all final goods and services produced within a country in a given period of time.
D.
value of all final goods and services produced by the citizens of a country, regardless of where they are living, in a given period of time.
查看完整题目与答案
【单选题】下列编码中属于可靠性编码的是【】。
A.
8421码
B.
奇偶校验码
C.
ASCII
D.
右移码
查看完整题目与答案
【单选题】下列( )编码属于变换编码。
A.
DCT
B.
PCM
C.
RLE
D.
D/A
查看完整题目与答案
【单选题】GDP is defined as the market value of all final goods and services produced
A.
by the citizens of a country, regardless of where they live, in a given period of time; this definition focuses on GDP as a measure of total income.
B.
by the citizens of a country, regardless of where they live, in a given period of time; this definition focuses on GDP as a measure of total expenditure.
C.
within a country in a given period of time; this definition focuses on GDP as a measure of total income.
D.
within a country in a given period of time; this definition focuses on GDP as a measure of total expenditure.
查看完整题目与答案
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