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1、东莞市2025-2026学年第一学期高一五校联考政治试题


5、东莞市2025-2026学年第一学期高一五校联考化学试题


B
Pet parrots that are allowed to make video calls to other birds show signs of feeling less isolated, according to scientists.
The study, which involved giving the birds a computer that they could use to make video calls, found that they began to engage in more social behaviors including preening, singing and playing. The birds were given a choice of which “friend” to call on a touchscreen computer and the study showed that the parrots that called other birds most often were the most popular choices.
Ilyena Hirskyj-Douglas, of the University of Glasgow and a co-author of the study, said that video calls had helped many people feel less isolated in the last few years. She added, “There are 20 million parrots living in people’s homes in the USA, and we wanted to explore whether those birds might benefit (受益) from video calling too. If we gave them the chance to call other parrots, would they choose to do so, and would the experience benefit the parrots and their caregivers ”
Their study of 18 pet parrots suggested that there were, indeed, benefits for the birds. In the wild, many species of parrots live in large groups, but as pets they are, kept alone or in a small group. Living alone can cause birds to develop mental problems, which include rocking, walking back and forth, or self-harming behaviors such as feather-plucking.
The parrots first learned to ring a bell and then touch a photo of another bird on the screen of a computer to make a call to that bird, with the help of their owners. In total the birds made 147 calls to each other during the study, while owners took detailed notes on the birds’ behavior and the researchers later reviewed the video footage.
Jennifer Cunha of Northeastern University said that the parrots “seemed to know” that they were communicating with other birds. “All the bird owners in the study said they valued the experience, and would want to continue using the system with their parrots in the future,” she said.


4、东莞市2025-2026学年第一学期高一五校联考英语试题


4、东莞市2025-2026学年第一学期高一五校联考英语试题


3、东莞市2025-2026学年第一学期高一五校联考语文试题


3、东莞市2025-2026学年第一学期高一五校联考语文试题


1、东莞市2025-2026学年第一学期高一五校联考英语试题


4、东莞市2025-2026学年第一学期高一五校联考英语试题


C．甲组的设计中，硬币将保鲜膜下压，有利于汇聚冷凝水
D．乙组的设计不是密封装置，会导致水蒸气散发损失
15．我国科学家利用CO2合成葡萄糖（C6H12O6），该方案的反应过程如图所示，X是空气中含量第二的气体。
下列说法不正确的是（　　）
A．X为O2
B．反应②实现无机物向有机物的转化
C．该方案合成葡萄糖理论上所需CO2与H2O的质量比为22∶9


象正确的是（)
过氧
A.气球胀大，红墨水右移
B.气球缩小，红墨水左移
化氢
C.气球胀大，红墨水左移
D.气球缩小，红墨水右移


3、东莞市2025-2026学年第一学期高一五校联考生物答案