Once out of the earth's gravity,the astronaut is ___ by the problem of weightlessness.( )A.affectedB. effectedC. relatedD. offered 答案 答案:A.affect动词,"影响";effect名词"影响";relate和…有关;offer提供.根据句意和各个选项的含义故选A.一旦离开了地球重力的影响,宇航员就被失重的问题影响....
The Earth: Is Gravity Drifting?doi:10.1038/10.1038/physci242113b0Nature
2. 火星表面的引力强度大约是地球表面引力的五分之二。___in space The gravity of Mars is about ___of Earth's gravity.相关知识点: 试题来源: 解析 The gravity of Mars is about two fifths of Earth's gravity. 火星表面的引力大约是地球表面的五分之二,因此火星的引力大约是地球引力的五分之二。反...
EGM Earth Gravity Model EGM Edvard Grieg Museum (Troldhaugen, Norway) EGM Estonian Green Movement (est. 1988) EGM Ensemble de Guitares de Marly (French: Ensemble of Guitars of Marly) EGM Electronic Gas-Measurement (equipment) EGM European Gypsy Moth EGM États Généraux du Multilinguisme (Fren...
Once out of the earth’s gravity, the astronaut is___ by the problem of weightlessness. A. affected B. effected C. related D. offered 试题答案 在线课程 A 解析: 句意为“一旦摆脱了地球吸引力,宇航员就受到失重问题的影响。”affect vt. 影响,与句意吻合。 练习...
引力Gravity is the force that keeps us on Earth. If we didn't have gravity, then we would float off(浮起) into space. With-out gravity, all the planets would just move off into space.People 1. (try) to explain gravity for a long time. A story happened to Isaac Newton, one of ...
Other planet's gravity The strength of an object in space gravity is directly proportional to the size of the object. The bigger an object is, the stronger its Gravity is. The Earth has a gravity of 2.6 times the gravity of Mars.1or to look at it another way, Mars has .375 the str...
1. The gravity on Mars is only about three-eighths of that on the Earth.在做比较时, 我们常用 that/those指代句中类似或相同的那一部分 。 e.g.火星上的空气要比地球上的稀薄的多。The air on Mars is on the Earth.Three-eighths 分分 英语中 数 示分 ,序数 示分 。如果分子大于1,分母要用...
Once out of the earth’s gravity, the astronaut is___ by the problem of weightlessness. A.affected B.effected C.related D.offered
Earth's familiar gravity - which is 9.8 m/s², or 1 g - is both essential to life as we it, and an impediment to us becoming a true space-faring species!