Satellites orbit ___ the earth. A. around B. on C. in D. at 相关知识点: 试题来源: 解析 A。本题考查介词的用法。“around”表示“围绕”,卫星围绕地球转,所以选 A。“on”表示“在……上面”,不符合卫星与地球的位置关系;“in”表示“在……里面”,也不合适;“at”表示“在……地点”,不...
The satellite is ___ orbit around the earth. A. in B. on C. at D. of 相关知识点: 试题来源: 解析 A。“in orbit”表示“在轨道上”,是固定搭配。“on”表示“在……上面”;“at”表示“在(小地点)”;“of”表示“……的”。反馈 收藏 ...
百度试题 结果1 题目The Earth's orbit around the Sun is: A. Circular B. Elliptical C. Parabolic D. Hyperbolic 相关知识点: 试题来源: 解析 B 反馈 收藏
The Earth's orbit around the Sun is an ellipse, which means its distance from the Sun ___ during the year. A. varies B. is invariable C. stabilizes D. disappears 相关知识点: 试题来源: 解析 A。解析:本题考查词汇和语法。“varies”表示变化,地球公转轨道是椭圆,与太阳距离会变化;“is invar...
The path of the earth around the sun is an elliptical shaped orbit. But it should be noted that the exact path of the planet changes slightly over time. These changes in orbit can affect certain natural events on the planet, like weather and climate.
The satellite orbits around the earth. The phrase “orbit around” means ___. A. 远离 B. 围绕……运行 C. 进入 D. 离开 相关知识点: 试题来源: 解析 B。“orbit around”表示围绕……运行,卫星围绕地球运行。A 选项“远离”是“be far away from”;C 选项“进入”是“enter”;D 选项“离开”...
The space station in a low - Earth orbit can ___ Earth's surface more frequently than those in higher orbits. A. observe B. discovers C. looks D. watch at 相关知识点: 试题来源: 解析 A。解析:首先,根据句子结构,这里需要一个动词原形,因为情态动词can后面接动词原形。选项B是第三人称单数形...
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
A. just as B. as if C. even though D. so that 相关知识点: 试题来源: 解析 A。本题考查连词的用法。“Space probes are sent to distant planets”和“satellites orbit around the Earth”是相似的情况,用 just as 表示“正如”。反馈 收藏 ...
试题来源: 解析 A。卫星能在地球轨道上运行是因为重力。重力提供向心力,使卫星保持在轨道上。选项 B“magnetism”磁力不是卫星在轨道上运行的主要原因。选项 C“electricity”电与卫星在轨道上运行无关。选项 D“friction”摩擦力在太空环境中很小,不是卫星在轨道上运行的主要原因。