A关键词(句):surface:表面翻译:---土地是什么呢?A.土地;B.海;C.天空;根据题意可知,答案为A. 结果一 题目 ()30.--What is theIt is the surface of the Earth,not coveredby water.A.landB.seaC.sky( )30.- What is the? -It is the surface of the Earth, not covered by water. A. la...
试题分析:考查名词性从句。根据结构可知is 后面是表语从句，表语从句中又有状语从句，所以需要两个连接词，一个引导表语从句，一个引导状语从句。which引导从句需做成分，而表语从句中不缺少成分，所以B选项正确。句意：甚至更重要的是当地球冷却的时候，水开始在地球表面上出现了。
Many of us have wondered what Earth is like beneath the surface.So have writers and scientists.In French novelist Jules Verne's masterpiece Journey to the Center of the Earth,explorers go down to Earth's center and discover amazing wonders.But in real life,human beings haven't even come cl...
what is the distance from earth's surface to a point above its surface where the acceleration due to fravity is 1/8th that of the surface 相关知识点: 试题来源: 解析 很简单啊,万有引力公式:F=GMm/(R^2),所以地球表面的重力加速度是FM/(R^2),这里M是地球质量,R是地球半径.设1/8的地方离...
通读全文并根据“What covers three-fourths of the Earth’s surface? It’s the water that makes up the Earth’s four oceans. They are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic Ocean”可知,第一段主要介绍的是地球四大海洋的水覆盖了地球表面四分之三。故选A。 (2...
The movement of the Earth's mantle can cause changes on the Earth's surface. What is this movement mainly due to? A. The rotation of the Earth. B. The gravitational pull of the Moon. C. Convection currents in the mantle. D. The impact of asteroids. 相关知识点: ...
Looking for online definition of Earth-Surface-Potential or what Earth-Surface-Potential stands for? Earth-Surface-Potential is listed in the World's most authoritative dictionary of abbreviations and acronyms
What covers three-fourths of the Earth\s surface? It\s the water that makes up the Earth\s four oceans.They are the Pacific,the Atlantic,the Indian and the Arctic.The Pacific Ocean is the largest and deepest. The Arctic is the smallest and shallowest. Stand on a beach and watch the ...
Answer to: At the Earth's surface, a projectile is launched straight up at a speed of 8.2 km/s. To what height will it rise? Ignore air resistance...
The earth is mostly covered by water. What percentage of the earth's surface is covered by water? A. 50% B. 60% C. 70% D. 80% 相关知识点: 试题来源: 解析 C。本题考查对地球表面被水覆盖比例的了解。选项 A50%、选项 B60%和选项 D80%都与实际地球表面被水覆盖约 70%的比例不符。