单词:land-surface
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Text Would you choose to live underground if you could gain many advantages from doing so? Weather would no longer trouble you. Temperature would remain the same all the year round. Artificial lightin
When it comes to the stock market, are you smarter than a first grader? Youd better wait a few minutes before you answer. Im Carl Azuz. This is CNN Student News. Authorities around the Gulf of Mexico are in a race against time. They are trying to con
Worlds within Worlds First of all let us consider the earth (that is to say, the world) as a planet revolving round the sun. The earth is one of mine planets which move in orbit round the sun. These n
That's also well put, the Canadian replied. 您这些话很正确,加拿大人回答说, But your proviso applies to any escape attempt, whether it happens in two years or two days. 但您提出的这一点可以应用到所有逃走的计划上面
The tropics contain a larger surface area of land than higher latitudesa fact that is not always evident when we examine commonly used projections of Earth's curved surface, since this tends to exaggerate the areas of land in the higher latitudesand
Almost every animal ever studied spends a large part of each day sleeping. Sleep is thought to play an essential role in the health of almost all animals. Because of this, scientists have long wondered how cetaceans, such as whales and dolphins, get