甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案于2025-12-27发布，目前已经汇总了甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案的各科答案和试卷，更多试卷答案请关注本网站。
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甘肃省2025-2026学年上学期高三高考诊断(12月)数学试题
甘肃省2025-2026学年上学期高三高考诊断(12月)数学试题
e. Lu Ban’s hand was cut.
A．a-e-b-c-d B．e-b-a-c-d C．a-b-c-d-e D．c-e-b-a-d
Alfredo Moser is a Brazilian worker who is skilled at repairing machines. His wife says her husband has always been handy (手巧的) at home and made tables and chairs. Alfredo has invented a way of lighting his house during the day without electricity.
He has been using plastic bottles filled up with water and a little bleach (漂白剂) to provide dark rooms with light for many years. And the idea has now spread across the world. It is predicted that his lighting system, which works using refraction (折射) of sunlight, will be fitted in over a million homes by the end of this year.
Alfredo used normal plastic drinks bottles that are often thrown away. The secret of the liquid in the bottles is the bleach added to water, which stops it turning green in the sunlight. Mr. Moser drills a hole in a roof tile (在屋瓦上钻洞) and then pushes the bottle in from below, keeping the bottle in place with polyester resin (聚酯树脂). Depending on the strength of sunlight, the light fills his home, and the bottles are just like electric bulbs of between 40 and 60 watts (瓦特).
Alfredo came up with the idea for his “Moser light” during one of the blackouts in Brazil in 2002. He said only factories had power in his home city, in southern Brazil during the energy shortage.
The local supermarket and his neighbors, houses are utilizing Moser lights. He earned a few dollars, but his invention has not made him a rich man. Now a great number of people admire what he is doing!
4、甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
4、甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
4、甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
6、甘肃省2025-2026学年上学期高三高考诊断(12月)数学试题
4、甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
（3）分别标记蜡烛A、B的位置，测得蜡烛B到玻璃板的距离 （选填“小于”“等于”或“大于”）蜡烛A到玻璃板的距离。当蜡烛A远离玻璃板时，像的大小 （选填“变小”“不变”或“变大”）。
（4）实验中，当蜡烛B与蜡烛A的像能够完全重合时，撤去蜡烛B并在原蜡烛B的位置放置一个与玻璃板平行的光屏，眼睛应该在蜡烛 （选填“A”或“B”）这一侧直接观察，发现光屏上不能显示蜡烛A的像，则说明物体在平面镜中成的是 像（选填“实”或“虚”）。
18．（2025秋 西安月考）小明用如图甲所示装置进行了“探究平面镜成像特点”的实验。
（1）小明选择用玻璃板代替平面镜进行实验的目的是便于确定像的 ；
（2）实验过程中，他把蜡烛A放在玻璃板前30cm处，蜡烛A在玻璃板中所成的像到蜡烛A的距离是 cm；当蜡烛A远离玻璃板时，它的像的大小将 ；（填“变大”“变小”或“不变”）
（3）在玻璃板后放一光屏，无论怎样移动光屏，都不能接收到蜡烛的像，由此可知平面镜所成的像是 像。（选填“虚”或“实”）
（4）在实验过程中，小明应拿一支外形相同 （“点燃”或“不点燃”）的蜡烛B放在玻璃板后面移动，直到看上去跟蜡烛A的像 ；
甘肃省2025-2026学年上学期高三高考诊断(12月)数学答案
