Many scientists helieve that one of these planets, Kepler 22b, has the right atmosphere and temperature to have life, Even in our solar system, scientists have found evidence of water on Mars and on Titan, one of Saturn's moons. They believe that this could mean that there is or was a...
( A )4. Kepler proved that the sun the center of the solar system. A. is B. was C. had been 相关知识点: 试题来源: 解析 答案见上A 【解析】考查动词时态。 句意:Kepler证明了太阳是太阳 系的中心 。 客观事实用一般现在时,故选A。 反馈 收藏 ...
It is the first planet in a “habitable zone” outside the solar system. That means the planet orbits(环绕) a star like our sun, but it is not too close to it, nor too far away. Because of this position, Kepler-22b might have water, one of the main things needed for life. The...
*88. Kepler proved that the sunthe center of the solar system.A. isB. wasC. had beenD. would be 答案 A88.A。“太阳是太阳系的中心”,这是一个客观事实,客观事实、规律和真理等始终用一般现在时。相关推荐 1*88. Kepler proved that the sunthe center of the solar system.A. isB. wasC. had...
C A planet called Kepler 22b was discovered!It is supposed to be an ideal home for future human. It has both land and water and has temperatures which average around 72 degrees. It also has the right atmosphere to support life. But it is 600 light years
1Kepler proved that the sun ___ the centre of the solar(太阳的)system . A.isB.wasC.has beenD.would be 2 Kepler proved that the sun ___ the centre of the solar(太阳的)system . A. is B. was C. has been D. would be 3 Kepler proved that the sun ___ the centre of the ...
The space agency says it is the first planet in a “habitable (可居住的)zone”outside our Solar System. That means the planet orbits a star like our sun. but it not too close to . nor too far away. Because of this position, scientists say Kepler-22b might have water, one of the ...
百度试题 结果1 题目Kepler proved that the sun the center of the solar system. A. was B. is C. has been D. had been 相关知识点: 试题来源: 解析 B 反馈 收藏
搜索智能精选 题目【题文】Kepler proved that the sun ___ the center of the solar system. ( ) A.is B.was C.had been D.would be 答案【答案】A
a planet about six hundred light years away.It is the first planet in a"habitable zone"outside the solar system.That means the planet orbits a star like our Sun,but it is not too close to it,nor too far away.Because of this position,scientists say Kepler22b might have water,one of ...