解析 A。解析:第一个空,“which orbit the sun”是定语从句,“asteroids”是复数,主动进行绕太阳的轨道运行,用一般现在时“orbit”;第二个空,“sometimes”表明是一般现在时,“asteroids”是复数,用“come”。B选项“are coming”是现在进行时表将来,不符合语境;C选项第二个空错误;D选项第一个空错误。
- [A] track:通常指车辆行驶的轨道或足迹,不适用天体运动。- [B] orbit:专指天体运行轨道,符合科学语境且为固定搭配(move in orbit)。- [C] tour:指旅行或游览,完全偏离语义。- [D] route:强调路线或路径规划,与宇宙空间运动无关。综上,正确答案为[B] orbit,因为它精确描述了行星绕恒星的轨道运动。
It is deduced from observations that the alignment of the axis lies in the same direction whatever part of its eight-month orbit Venus may occupy, particularly by comparing different quadrants of the orbit in turn. This is also shown from examining both poles visible alternately for half of ...
In elliptical orbit sun is at one of the foci hence the distance between the planet and sun changes as planet revolves hence linear speed, kinetic energy and potential energy of planet of do not remain constant
A comet orbits the sun in a highly elliptical orbit. Which of the following quntities remains constant throughout its orbit ? (i) Linear Spped (ii) Angular
百度试题 题目The earth is one of nine planets which___in orbit round the sun. 对比:The earth is the only one of the nine planets which___life on it.相关知识点: 试题来源: 解析 move has 反馈 收藏
Earth and other planets orbit around the sun and the moon around the earth's orbit is close to elliptical, which is used by Newton, came to the law of gravity 翻译结果2复制译文编辑译文朗读译文返回顶部 Earth and around other planets Sun orbit and moon around Earth's orbit close to oval,...
aThe earth is one of nine planets which move in orbit round the sun. 地球是移动轨道围绕星期日九个行星的之一。[translate]
If an object only meets the first criteria of orbit the sun, it is an asteroid. If it orbits the sun and has a spherical shape, it is a dwarf planet. If it orbits the sun, has a spherical shape, and has enough mass to clear other objects from its orbital track, it is a planet...
A great cheer went up in the control room when the rocket was flying normally about 45 minutes later.The Mars mission probe named Tianwen-1 has entered the scheduled(预订的)orbit without any mistakes,and finally it will enter Mars' orbit around the sun. Liu Tongjie,spokesman for the ...