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  3. Venus(金星) is known as the earth’s "twin" because the two planets are so like each other in size. The diameter of Venus is about

Venus(金星) is known as the earth’s "twin" because the two planets are so like each other in size. The diameter of Venus is about

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问题     Venus(金星) is known as the earth’s "twin" because the two planets are so like each other in size. The diameter of Venus is about 7, 520 miles (12,100 km. ), smaller than that of the earth. No other planet comes closer to the earth than Venus. At its nearest approach it is about 25,000,000 miles (40,2000,000 km. ) away.
    As seen from the earth, Venus is the first planet or star that can be seen in the western sky in the evening. At other times, it is the last planet or star that can be seen in the eastern sky in the morning. When Venus is near its brightest point, it can be seen in daylight. Early astronomers called the object that appeared in the evening Hesperus, and Phosphorus in the morning. Later, they realized these two objects were the same planet. They named it Venus in honor of the Roman goddess of love and beauty.
Travelling around Venus in a straight way, you would have a long trip of about ______miles.
选项 A、24,896
B、23,613
C、37,994
D、25,000,000
答案B
解析 本题涉及一个数学常识。知道了金星的直径为“7520英里(第2个句子)”，其周长需要乘以圆周率3．14，可以得出B选项的答案。
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