29.C,细节理解题,根据第二段"He calculated that the circumference(圆周) of the Earth was 28,600 miles(46,000 kilometers). "他计算出的地球的圆周周长是28600英里(46000公里),可知,他确信地球是圆的,故sphere是一个球体,故选C.30.B,词义猜测题,根据第二段大意可知,Eratosthenes 测算出地球的周长,可知...
○ A) circumference○ B) circleC) width○ D) depth 相关知识点: 试题来源: 解析 A) circumference 题目描述公园里的湖泊距离为三公里,需要选择合适的词语来描述这个距离。选项中,"circumference" 指周长,符合湖泊距离的描述,因此答案为 A) circumference。
At the equator, the Earth’s surface moves 40,000 kilometers in 24 hours. That is a speed of about 1040 miles/hr (1670 km/hr). This is calculated by dividing the circumference of the Earth at the equator (about 24,900 miles or 40,070 km) by the number of hours in a day (24)...
初一上册地理(ThefirstbookofGeography) Gradesevengeographyreviewdata 1.thelargestcircumferenceoftheearth'sequatoristhe equator,whichisabout40thousandkmlong.Thesurfacearea oftheearthis510millionsquarekilometers.Theaverage radiusoftheearthis6371km. The2.largestcontinentintheworldisAsia,andthesmallest continentisoce...
Themoon is its satellite.The radius(半径) of the earth's equator(赤道) is6,378.137 km, the polar (极) radius is 6, 356.752 km, andthe circumference(圆周长) of the equator is about40,075 km. The surface(表面) area of the earth is 510million square kilometers(平方千米), of which ...
A项circle(圆) ; B项depth(深度) ; C项width(宽度) ; D项 circumference(周长) 。分析句子结构, 主语 是“The lake in that park” (那个公园里的 湖) , 系动词是“is” , 表语是“three kilometers” (三千米) , 介词短语“in__”应该 表示“在方面”,结合选项,应该是表达湖的 宽度,故答案是C...
where x = the circumference of the Earth in kilometers. Solving for x reveals the circumference to be Circumference=39,350\ kilometers Step 1 Compute the radius of the Earth using the formula C (circumference) = 2 x pi x r (radius). Eratosthenes' methods result in a formula that would...
For reference, the circumference of Earth is 24,900 miles (40,000 kilometers). MARIA SHERMAN Maria Sherman is the music reporter at The Associated Press. She is based in New York City. twitter instagram mailto The Associated Press is an independent global news organization dedicated t...
#VR46WorldLap: Rossi races the circumference of the EarthThe Italian has now covered 40,075km in competition – the circumference of the planet at the equatorThere are a lot of records held by Valentino Rossi (Movistar Yamaha MotoGP), but the ‘Doctor’ now has another new and truly ...
687 miles. Archimedes was the closest to guessing the accurate circumference of the Earth, which is 40,075 kilometers. Erastosthenes, a Greek scholar living in Egypt, observed the position of the sun during the summer solstice and calculated the approximate circumference of the Earth using the ...