The ___ of air also explains why the stars don't seem to twinkle in space.A.absenceB.absentC.presentD.presenceA 句意:空气稀薄也能解释为什么太空中星星似乎不闪烁。absence“缺乏;缺少;缺席”。 相关知识点: 试题来源: 解析 A.absence 首先,句子结构要求空格处填入名词(因冠词"the"后需接名词)。
7. The absence of air explains why the stars do not seem to twinkle in space as they do from the earth. 相关知识点: 试题来源: 解析 答案见上7. as 考查状语从句。句意:空气的缺乏解释了为什 么星星在太空中似乎不像在地球上那样闪烁。as在此 处意为"正如,就像",引导方式状语从句。
aautomition automition[translate] aDelivery to the following recipients failed. 交付对以下接收者出故障。[translate] aDead Sea [duplicated 87114] 死海 (复制了87114)[translate] aeagle Idaho 老鹰爱达荷[translate] aWhy does airspace exist? 为什么领空存在?[translate]...
However, in the first two weeks of February, U.S. fighter jets shot down four objects flying over North America, including the Chinese civilian balloon that the Pentagon said "does not present a military or physical threat to people on the ground," or a significant risk of intelligence colle...
Airspace Technology Demonstration 2 (ATD-2): Fuser Why Everyone Should Have OneShawn M. GormanJason M. BurkeIsaac J. RobesonSWIFT Meeting
55. The absence of air explains why the stars do not seem to twinkle in space D they do from the earth. A. where B. which C. that D. as 相关知识点: 试题来源: 解析 答案见上55. D。本句考查as引导方式状语的用法,意为“像...一样”。 反馈 ...
This paper does precisely what Petit calls for: new operating paradigms and new technology for reusable spaceplanes designed for a giant leap for mankind to attain low earth orbit. Background After NASA published Don Petit’s insights, there has been many a clarion call from spaceplane advocates...
The ___ of air also explains why the stars don't seem to twinkle in space.3K8ISNQwy7 A. absence B. absent C. present D. presence 相关知识点: 试题来源: 解析 与解读:A 句意:空气稀薄也能解释为什么太空中星星似乎不闪烁。absence“缺乏;缺少;缺席”。3K8ISNQwy7 反馈 收藏 ...
Space miso is nuttier than Earth miso — but it's still miso SpaceX's Fram2 astronaut flight over Earth's poles will be the 1st to grow mushrooms in space This still from a high-speed video shows steam bubbles forming from frying potatoes in oil during a parabolic airplane flight that ...
A spacecraft on launchdoesheat up, just not to the degree that it does on reentry. And it heats up for the same reason--atmosphericatmospheric drag, which includes adiabatic air compression and atmosphericfriction(or drag). The key difference between launch and reentry is that they are two...