The atmosphere is made up of different gases. Oxygen is one of the important gases for life. What percentage of the atmosphere is made up of oxygen? A. 21%. B. 78%. C. 0.93%. D. 99%. 相关知识点: 试题来源: 解析 A。科普知识中大气的组成,氧气约占 21%。选项 B 是氮气的含量。
4. The atmosphere is made up of more than 70% of nitrogen(氮气).___(用高级短语替换is made up of) 相关知识点: 试题来源: 解析 4. consists o 结果一 题目 【题目】4 .Th eatmospher ei smad eu pof more than 70% of nitrogen(氮气)。___(用高级短语替换 is mad eup of) 答案 【解析】...
用所给词的适当形式填空 made into, made from, made up of, made of 1.Here you can see how the script was a finished comic strip. 2.The skirt cotton looks very nice. 3.The atmosphere is certain gases mixed together in definite proportions.
The atmosphere of the Earth begins with the Earth's surface and extends to the boundary with outer space. Although there is no clear point at which the atmosphere ends and outer space begins, the atmosphere itself is usually divided into five different layers: the troposphere, the stratosphere,...
用所给词的适当形式填空 made into, made from, made up of, made of 1.Here you can see how the script was ___ a finished comic strip. 2.The skirt ___ cotton looks very nice. 3.The atmosphere is ___ certain g
根据题干,可知,考查句型: be made up of 由…所组成;The air in the atmosphere大气层中的空气,air是不可数名词,作主语时,动词用三单式,时态为一般现在时; dust and gases尘土和各种气体.结合句意:大气层中的空气是由尘土和各种气体组成.故答案为The air in the atmosphere is made up of dust and gases...
1.Five different layers that make up the Earth's atmosphere.2.The troposphere. <解题过程>对于第一题,从短文中明确提到 “The Earth's atmosphere is made up of five different layers.”(地球大气层由五个不同的层组成),所以 “The Big Five” 的意思就是组成地球大气层的五个不同的层,答案为 Five...
the atmosphere is made of 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 大气是由 翻译结果2复制译文编辑译文朗读译文返回顶部...
We believe they gradually spiral down out of the rings and into the planet's atmosphere. This occurs as a result of the planet's gravity, and also because of the effects of its magnetic field. Now, if material from Saturn's rings is being lost and nothing new is added from time to ...
11. Theatmosphere ___ certain gases mixed together in definite proportions. C A. composes of B. is made up C.consists of D. makes up of12. NeitherJohn ___ his father was able to wake up early enough to catch the morningtrain. A A. nor ...