China first had to put a satellite in orbit above the moon in a spot ___ it could send signals to the spacecraft and to Earth.相关知识点: 试题来源: 解析 where [详解]考查定语从句。句意:中国必须先把一颗人造卫星送入月球上方轨道中的一个位置,人造卫星可以在那里向航天器和地球发送信号。___...
3.语法填空①Chin a first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth. 相关知识点: 试题来源: 解析 答案见上3.①where。 句意:中国首先必须把一颗人造卫星放到月 球上方的轨道上,在那儿它可以向航天器和地球发送信 号。
因为那样会产生歧义，误解为在月球上发送信号。尤其是对听众而言，如在广播中听到，更是如此。
If successful, it will be the first spacecraft to orbit a natural satellite other than Earth's Moon. The JUICE spacecraft blasted off from the European spaceport in Kourou, French Guiana, on 14 April, after poor weather delayed the original launch time by about 24 hours. A precise lift-...
"The first doing" 更强调的是第一次正在做某事的概念，而 "the first to do" 更强调的是第一个要做某事的概念。The first 造句：1、The first man to walk on the moon was Neil Armstrong.第一个在月球上行走的人是阿姆斯壮.2、The first man to orbit the earth was Yuri Gagarin.第一...
Space exploration began in 1957,when the first artificial satellite was launched by the Soviet Union.Yuri Gagarin 11(1)___ (become) the first person to orbit (环绕) the earth in 1961.In 1969,Neil Armstrong was the first person to walk 1 (2)___the moon.Since then,space exploration...
【题目】Ⅱ.语法填空The first creature to orbit our planet was just three yearsold, saved from the streets of Moscow only more than a week1.her historic travel. Her name was Laika.Her 1957 flight paved the way for space exploration at thetime 2.scientists didn't know if spaceflight was...
First Quarter Moon is the second primary Moon phase when the Moon has reached the first quarter of its orbit around Earth, hence the name. A Primary Phase Is an Exact Time The first primary Moon phase isNew Moon, while the third is theFull Moon, and the last is calledThird Quarter Moon...
在这一天,宇航员们需要准备一件至关重要的事情——进入月球轨道(Lunar Orbit Insertion,LOI)。 阿波罗登月轨道规划 下半张图是进入月球并登月的轨道,上半张图是离开月球并返回的轨道。 就算是进入了月球的引力圈,飞船依旧存在发生故障需要返航的可能,因此地面在接下去的两个小时内又向宇航员们传输了各种时间节点对...
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