Pluto, which is no longer considered an official planet, is about 48 AU from the Earth. Because the orbits of the planets are elliptical, the distances change over time. Pluto’s orbit is so eccentric that it can be closer to Earth than Neptune. An astronomical unit is 149,597,870,700 ...
这两个星球的其他不同之处是什么？
从句“there is life on other planets”是一个完整句子,这里表示“其他星球上是否有生命仍然是一个谜”,“whether”有“是否”的意思,能引导主语从句,表示不确定的情况。选项B“what”在从句中通常充当主宾表等成分,这里不需要,所以错误。选项C“that”无实际意义,不表示疑问,不符合语境。选项D“which”通常表示...
故答案为other. (3).【答案】 its 【解析】 句意:多年来,科学家发现木星有自己的小星系.故答案为its. (4).【答案】 largest 【解析】 句意:木星是太阳系中最大的行星.故答案为largest. (5).【答案】 Because 【解析】 句意:因为有这么多的卫星,科学家们开始给它们编号.故答案为Because. (6).【...
What will life consist of on other planets? 这里为什么要用will吖?其它星期的生命将由什么组成 ? 说不通吖 答案 这是对其它星球上生命的存在的推测,用will更委婉.如果用does,就不能表示推测了,就表示现实存在了. 相关推荐 1What will life consist of on other planets?这里为什么要用will吖?其它星期的生...
Other planets suchas Uranus(天王星)and Neptune(海王星),are allvery far from the sun and very cold. We need atelescope(望远镜) to see them.1. What can give out heat and light in space?2. What's the result(结果) of the earth going aroundthe sun once every year?3. What's the name...
The Earth is a planet. What makes it different from other planets? A. It has water. B. It has no atmosphere. C. It is very small. D. It is very hot. 相关知识点: 试题来源: 解析 A。地球与其他行星不同之处在于它有液态水。
There are eight planets(行星) in our solar system(太阳系). Here is what you need to know about them.Mercury is the smallest planet in our solar system. It is the closest planet to the Sun. It is hot during the day. It is very cold at night.Venus is the second planet from the Su...
Why does the earth have life while the other planets(行星) don't? For one thing, the earth has just the rightemperature. As the third planet from the sun, the earthseems to be just the right distance away. The planetswhich are closer to the sun are so hot because theisurfaces are ...
Saturn(土星) has more than 22 moons.Other planets, such as Uranus(天王星) and Neptune(海王星), are all very far from the sun and very cold.We need a telescope(望远镜) to see them.1. What can give out heat and light in space?2. What's the result(结果) of the earth going around...