2024-03-05
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Why is sea water saltySeawater is a very complex multi-component aqueous solution. All kinds of elements in seawater exist in certain physical and chemical forms. The existence form of copper in seawater is more complex, and most of it exists in the form...
2024-03-05
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How do sinkholes form? What are the famous sinkholes in ChinaSinkhole refers to a huge volume, steep and trapped rock wall, deep well or barrel profile and other extraordinary spatial and morphological characteristics, developed in the soluble rock layer...
2024-03-05
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What was the ancient Egyptian civilizationAncient Egypt (Arabic: The moon moon, the moon moon, the moon Moon, the moon Moon, the moon moon) ‎, is one of the four ancient civilizations, located in the northeast of Africa in the middle and lower rea...
2024-03-05
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The legend of Ayers RockAustralia's Ayers Rock is also known as Ayas Rock, also known as Uluru. Ayers Rock is 335 meters high and 3,000 meters long, with a base circumference of about 9.4 kilometers, high and wide in the east and low and narrow in th...
2024-03-04
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What is the most valuable currency in the world1 Kuwaiti Dinar =3.3179 USD =21.9018 RMB YuanKuwait, a country slightly smaller than New Jersey, has the most valuable currency in the world, with the largest note currently worth 20 yuan, equivalent to more...
2024-03-04
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France, Australia, the United States, South Korea,...
2024-03-04
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What are the ages and conditions for primary schoo...
2024-03-04
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American high school start and end timesAmerican m...
2024-03-04
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Us, Canada, UK, Australia, New Zealand high school...
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School and school hours for middle school students...
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When do primary school students go to school in Sh...
2024-03-04
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What is the school time and school time in Beijing...
2024-03-04
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What is the time for primary school students in Sh...