【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______。
【单选题】患者,男性,70岁,慢性肺源性心脏病晚期,经吸氧、抗感染、利尿及洋地黄类药物治疗后,呼吸困难减轻,但出现昼睡夜醒,恍惚多言。您认为最可能的是( )
【单选题】关于定焦镜头和变焦镜头,下列说法错误的是( )。
【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.
【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?
【单选题】()镜头视角大,比较适合于拍摄风光摄影作品