汉武大帝

新华社巴黎7月9日电（记者肖亚卓）在9日结束的2022环法自行车赛第八赛段比赛中，卫冕冠军、斯洛文尼亚车手波加查以第三名的身份完赛，进一步巩固了在总成绩榜上的领先优势，比利时名将范阿尔特获得本赛段冠军。

B | 然而，场外的因素却让波加查无法尽情享受保有黄衫的喜悦。在前一日的第七赛段比赛结束后，有两名车手因为感染新冠退赛，其中一位还是波加查所在的阿联酋航空车队的队友朗根。    

    Lunar soil Photo: IC
Chinese scientists have made new progress in the study of lunar soil samples returned by the Chang'e-6 mission, providing fresh evidence to the striking differences between the moon's near and far sides, which have long puzzled scientists.
Because the moon is tidally locked to Earth, its rotation period matches its orbital period, meaning the same side always faces Earth. The moon's near side features vast dark basaltic plains known as lunar maria, while its far side is dominated by bright highlands with far fewer maria, creating a striking contrast between the two sides. Why does the moon have such "two faces"?
Scientists studying the moon's early formation and evolution have long used the lunar magma ocean model as a basic framework. Under the model, the chemical and isotopic characteristics of different types of lunar magma can be explained by the mixing of different components in varying proportions after the magma ocean cooled, Guangming Daily reported on Saturday. 
However, previous lunar samples were collected only from the moon's near side, while significant differences exist between the near and far sides in their topography, composition and internal structure.
Against this backdrop, the research team from Institute of Geology from Chinese Academy of Geologist Sciences studied feldspathic impact-melt rocks in lunar soil samples returned by the Chang'e-6 mission. Using China's first independently developed ion probe system, researchers conducted a comprehensive analysis to test the lunar magma ocean model and examine how large impacts reshaped reservoirs in the lunar crust and mantle.
Through high-precision analyses, the team identified key clues to the moon's evolutionary history, suggesting that the stark differences between its near and far sides may be linked to the ancient giant impact that formed the South Pole-Aitken Basin.
The study found that the massive impact continued to profoundly reshape the lunar crust and upper mantle after the lunar magma ocean had solidified, fundamentally altering the material composition of parts of the moon's far side.
The findings add to the traditional lunar magma ocean model, suggesting that the formation and preservation of the moon's crustal and mantle reservoirs may have varied significantly from region to region and cannot be fully explained by a single, uniform model of primordial magma-ocean differentiation.
The research provides new scientific evidence for understanding the differences between the moon's near and far sides, while offering fresh insights into the moon's complex evolutionary history, according to Guangming Daily. 
Global Times
。“他在昨晚出现了一些新冠症状，随后的抗原检测和PCR检测结果都呈阳性。

C | ”车队的队医罗通诺说。

D | 另一位因感染新冠退赛的选手是AG2R车队的法国车手布沙尔。“这让我们都非常担心，病毒仍然在我们周围，我们不能冒着巨大的风险比赛。”波加查表达了自己对目前情况的担忧，“我们每两天做一次检测，但朗根还是在昨天夜里生病了。比赛途中，道路两旁挤满了欢呼呐喊的观众，有时候你可能会认为感染源就来自那里。”

第八赛段来到了瑞士境内，从多勒出发，终点设在洛桑，赛段全长186.3公里。珍宝车队的范阿尔特在最后的冲刺中战胜了单车交易车队的澳大利亚车手马修斯获得赛段冠军，这也是他在今年环法比赛中获得的第二个赛段冠军。波加查获得赛段第三。总成绩榜上，波加查继续身披黄衫并且将领先优势扩大到了39秒，珍宝车队的温格高排名第二，英力士车队的托马斯落后波加查1分14秒位列第三。10日的第九赛段将从国际自行车联盟（UCI）的总部所在地艾格勒出发，终点是位于法国和瑞士交界处的沙泰尔太阳门滑雪场，赛段全长192.9公里，包括2个一级坡、1个2级坡和1个4级坡。

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Published on:14:57:27