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2、[天一大联考]2024-2025学年湖南省高一联考(3月)历史试题


4、[天一大联考]2024-2025学年湖南省高一联考(3月)历史试题


A Fruitful Science Lecture
第二节(满分25分)
阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。
Mr. Jones was the coach of my basketball team. He was tough. He had high expectations and conducted
physically and mentally demanding practices. I thought I suited the school team but he only allowed me in the
last minute or two, if we were winning by enough. Essentially, I only had the opportunity to play in practice.
However, I battled, hoping the next year could be my year.


Passage 2
As we age, some cells in our bodies stop dividing and instead linger, releasing chemicals that can weaken our immune system and contribute to diseases. These are known as senescent cells, and they accumulate in our organs over time. When an older organ is transplanted into a younger person, these senescent cells can trigger a process called “transplant - associated senescence,” which may worsen the outcome of the transplant or even lead to organ rejection.
However, a new class of drugs that selectively clear away senescent cells may change the situation. Scientists at Harvard Medical School, led by Stefan Tullius, have been researching ways to stop the transfer of senescent cells during organ transplantation. In a recent study, they used these drugs in mice and achieved promising results.
The team first transplanted hearts from older donors into younger mice. As expected, the mice that received hearts from older donors had more senescent cells in their livers and lymph nodes compared to those that got hearts from younger animals. But when the older - heart - receiving mice were treated with the senolytic drugs (drugs that target senescent cells), not only did the senescent cells in their organs decrease significantly, but the overall health of the mice also improved.
Jesús Gil from Imperial College London said, “This is a promising approach with many potential implications.” Currently, there is a high demand for organ transplants in Europe, with 21 people dying daily on average while waiting for a transplant. Older organs are often turned down due to concerns about their viability. Gil believes that the use of senolytic drugs could potentially increase the pool of available organs for transplantation. Although there are still questions about the long - term effects of these drugs, the research offers new hope for improving the success rate of organ transplants.
What are senescent cells
A. Cells that divide rapidly as we age.


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4、[天一大联考]2024-2025学年湖南省高一联考(3月)历史答案


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（3）通过图像知，图中虚线表示的作用力有铜离子和水分子之间的配位键、水分子中氢原子和另一分子中氧原子之间的氢键。


B.在色氨酸水溶液中，可通过调节溶液的pH使其形成晶体析出
C.在一定条件下，色氨酸可发生脱水缩合反应
D.褪黑素与色氨酸结构相似，也具有两性化合物的特性
9.我国科学家在全球率先发现了有效治疗Ⅱ型糖尿病的神奇分子——非肽类分子激动剂（代号为Boc5，化学式为），它的神奇之处在于能模拟人体内的某些大分子，促进人体分泌胰岛素，发挥对血糖的调节作用，这一发现将为千百万Ⅱ型糖尿病患者解除病痛。下列有关说法正确的是( )
A.Boc5中一定不含
B.葡萄糖、麦芽糖均能与新制氢氧化铜反应生成
C.Boc5是高分子化合物


3、[天一大联考]2024-2025学年湖南省高一联考(3月)化学答案