Which is INCORRECT about Venus? [br] [originaltext] A starting point for all

游客2023-11-02  34

问题 Which is INCORRECT about Venus? [br]  
A starting point for all astronomy students should be the great star "Venus". Of course we know it is not a star at all but the second planet from the Sun and the sixth largest. Venus is usually visible with the naked eye. Sometimes referred to as the "morning star" or the "evening star" , it is by far the brightest "star" in the sky.(18)It is the brightest object in the sky except for the Sun and the Moon. Anyway, what I want to talk about is what Venus looks like from ground level. Venus is sometimes regarded as Earth’s sister planet. Both have few craters indicating very young surfaces. Their densities and chemical compositions are similar.(19)There are several layers of clouds, many kilometers thick, composed of sulfuric acid. These clouds make it totally impossible to see what the surface is like. How about winds? It might surprise you that they are not that much different than earth’s, in fact, perhaps even slower. There are strong winds at the cloud tops—up to 350 kilometer per hour, but winds at the surface are very slow, no more than a few kilometers per hour.(20)Venus probably once had large amounts of water like the Earth but it all boiled away so now it’s quite dry. Earth would have suffered the same fate had it been just a little closer to the Sun.

选项 A、Sulfur.
B、Acid.
C、Vapor.
D、Sulfuric acid.

答案 D

解析 情景事实题。短文中多处提到金星同地球有很多相似的地方。句(19)提到有很多云层,均有几千米厚,并由硫酸组成。因此D为正确答案。
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