What have been sent to Mars in recent years? A. Astronauts B. Unmanned spacecraft C. Telescopes D. Satellites 相关知识点: 试题来源: 解析 B。解析:文中提到近年来有许多无人任务前往火星,也就是无人航天器(Unmanned spacecraft)被发送到火星,目前还没有宇航员(Astronauts)到达火星,望远镜(Telescopes)...
A. To build bases on Mars. B. To study Mars' surface, geology and climate. C. To look for other planets. D. To communicate with E. xtraterrestrial life. 相关知识点: 试题来源: 解析 B。解析:根据文章内容,火星探测器被送往火星是为了研究火星的表面、地质和气候,选项A中的在火星上建造基地、...
Well, it didn’t take up a position in Mars orbit or hurtle off into deep space. Nor did it burn up in the red planet’s atmosphere or head back to Earth. Instead, with its work complete, the descent stage used its onboard thrusters to fly a safe distance from Perseverance before cr...
What’s the red star in the sky through a telescope(望远镜)? It is Mars.Do you want to know more about it? Take the “Mars Orbit Express”! “Mars Orbit Express” is a space probe(探测器).It was sent towards Mars by American scientists on August 12th,2005.Its tasks are to study ...
What’s the red star in the sky through a telescope(望远镜)? It is Mars. Do you want to know more about it? Take the “Mars Orbit Express”!“Mars Orbit Express” is a space probe (探测器). It was sent towards Mars by American scie
百度试题 结果1 题目What have scientists sent to Mars? A. Spaceship. B. Life. C. Nothing. 相关知识点: 试题来源: 解析 A 【原文】 略反馈 收藏
What scientists have sent to Mars?Scientists / They have sent a spaceship to Mars. / A spaceship.2. Where have astronauts already been?Astronauts / They have already been to the moon. / To the moon.3. Why has no one been to Mars yet?Because Mars / it is very far away, much ...
And questions like that are exactly what the Mars rovers were sent to the planet to explore. The Little Rovers That Could Artist rendition — Image Credit: NASA/JPL-Caltech The Mars Exploration program began in 1993. The program was spearheaded by NASA with the intent to explore ...
阅读理解. What's the red star in the sky through a telescope ? It is Mars. Do you want to know more about it? Take the Mars Orbit Express ! Mars Orbit Express is a space probe . It was sent towards Mars by American scientists on August 12th, 2005. Its
“Mars Orbit Express” is a space probe (探测器). It was sent towards Mars by American scientists on August 12th,2005. Its tasks are to study Mars’ atmosphere and return photos to Earth. But before that “Mars Orbit Express” must travel about 100 hundred million kilometers and seven ...