采样器内剩余的油样及洗刷采样器的油品必须倒回罐内.不须另作处理。()A.正确B....

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采样器内剩余的油样及洗刷采样器的油品必须倒回罐内.不须另作处理。()

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【多选题】适合拍摄人像的定焦镜头有哪些?

50mm

85mm

100mm

135

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【单选题】最适合拍摄球类比赛或大型舞台场景的镜头种类是______。

定焦镜头

广角镜头

长焦镜头

标准镜头

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【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?

24-105mm变焦镜头

70-200mm变焦镜头

600-800定焦镜头

85定焦头

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【单选题】关于定焦镜头和变焦镜头，下列说法错误的是（）。

定焦镜头是焦距固定不能改变的镜头

变焦镜头，取景适应范围大

定焦镜头适合拍摄背景清晰的人像照片

变焦镜头，结构复杂，体积和重量更大

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【单选题】GDP is defined as

the market value of all intermediate goods and services produced within a country in a given time period.

the market value of all final goods and services produced within a country in a given time period.

ven time period.

the market value of all intermediate goods and services produced by a country's citizens within a given time period.

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

value of all goods and services produced within a country in a given period of time

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.

value of all final goods and services produced within a country in a given period of time.

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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【简答题】定焦镜头与变焦镜头有哪些区别? 想取得小景深画面适合选择什么样的镜头? 想取得透视变形较小的画面,应该选择什么样的镜头? 想要夸张前景物体的巨大,应该选择什么样的镜头? 拍摄室内空间,应该选择什么样的镜头? 拍摄人物头像,选择什么样的镜头才能取得背景虚化人物突出的效果?

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【单选题】()镜头视角大,比较适合于拍摄风光摄影作品

广角

长焦

定焦

微距

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【单选题】下列编码中属于可靠性编码的是【】。

8421码

奇偶校验码

ASCII

右移码

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【单选题】GDP is defined as the market value of all final goods and services produced

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.

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.

within a country in a given period of time; this definition focuses on GDP as a measure of total income.

within a country in a given period of time; this definition focuses on GDP as a measure of total expenditure.

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相关题目：

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【单选题】最适合拍摄球类比赛或大型舞台场景的镜头种类是______。

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?

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（）。

查看完整题目与答案

【单选题】GDP is defined as

the market value of all intermediate goods and services produced within a country in a given time period.

the market value of all final goods and services produced within a country in a given time period.

ven time period.

the market value of all intermediate goods and services produced by a country's citizens within a given time period.

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

value of all goods and services produced within a country in a given period of time

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.

value of all final goods and services produced within a country in a given period of time.

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】()镜头视角大,比较适合于拍摄风光摄影作品

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【】。

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【单选题】GDP is defined as the market value of all final goods and services produced

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.

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.

within a country in a given period of time; this definition focuses on GDP as a measure of total income.

within a country in a given period of time; this definition focuses on GDP as a measure of total expenditure.

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