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百度试题 结果1 题目Question. A lens of power of -4.0 D what is its focal length? Identify the nature of the lens. 相关知识点: 试题来源: 解析 f=-25cm,concave 反馈 收藏
A lens is made according to the laws of light refraction. A lens is an optical element made of transparent substances such as glass, crystal, etc. A lens is a refracting mirror with two spherical surfaces, or a transparent body with one spherical surface and one plane. The image it ...
A. To capture a large area B. To focus on details C. To create a shallow depth of field D. To E. nhance colors 相关知识点: 试题来源: 解析 A。使用广角镜头在时尚摄影中的主要目的是能够拍摄更大的区域,展示更多的场景。反馈 收藏
A. Convex lens B. Concave lens C. Plane mirror D. Prism 相关知识点: 试题来源: 解析 B。解析:近视是由于眼睛的晶状体对光线的会聚能力太强,需要用凹透镜来矫正。选项 A 凸透镜用于矫正远视眼;选项 C 平面镜主要用于反射;选项 D 棱镜用于光的色散等。反馈...
aThe output of the detector 68 is coupled to the pulse former 70 which generates trigger pulses 探测器68的产品被结合到引起触发脉冲的脉冲前70[translate] a中学生目前存在的问题 正在翻译,请等待...[translate] a所以请不要轻易对你的朋友说“忘记我或我们不要再见面”之类的话,好吗? Therefore please ...
“The Way of Tian” (天道) stands as one of the most core concepts embodying the essence of Chinese culture. In this seminar, we will delve into its logic and nature through the lens of Zhuang Zi’s Daoist classic “Enjoyment in ...
What is the lecture mainly about? A . The development of the lens of the human eye B . The function of different types of cells in the human eye C . Features of cells that enable cells to repair themselves D . Characteristics of the lens of the human eye ...
What will happen if the lens is dirty? The auto-focus of the camera doesn’t___.相关知识点: 试题来源: 解析 正确答案:focus on subject 解析:细节题。根据第四条Auto-focus does not focus on subject.可知,如果镜头脏了,自动对焦就不能聚焦在物体上了。反馈 ...
19. What is the price of the ticket for an adult? A. £68. B. £24.95. C. £18.95. 20. Where is the speaker now? A. On the top floor. B. On the ground floor. C. On the seventy-second floor. 第...