Sound cannot travel through ___. A. air B. water C. solids D. vacuum 相关知识点: 试题来源: 解析 D。原因:文章明确指出“In a vacuum, there is no medium for sound to travel through, so sound cannot be heard.”。 反馈 收藏
百度试题 结果1 题目Sound cannot travel through _. A. steel B. glass C. vacuum D. water 相关知识点: 试题来源: 解析 C。声音不能在真空中传播。选项 A 钢中声音可以传播;选项 B 玻璃中声音可以传播;选项 D 水中声音可以传播。反馈 收藏
Click here:point_up_2:to get an answer to your question :writing_hand:what is vacuum explain why sound cannot travel through vacuum
Light waves travel 300,000 kilometers (186, 000 miles) per second! They can also travel through a vacuum. That is why light from the sun and distant stars can travel through space to the earth! (175 words) 下载手机APP 7天免费畅听10万本会员专辑 ...
Light waves travel 300,000 kilometers (186,000 miles) per second! They can also travel through a vacuum. That is why light from the sun and distant stars can travel through space to the earth! Useful Words and Expressions;1. destructive破坏的2. seismic地震的3. vacuum真空 更多全部 听友997...
While both vacuum and hot air can be used,onlyonecanbe operated at once.One cannotusea combination of hot air and vacuum or two vacuums simultaneously. doc.hakko.com doc.hakko.com 本機可以真空吸錫及吹出熱風兩用, 但每次操作只可連接其中一個工具, 不能同時使用 吸錫及熱風工具, 或同時使用兩...
aSoft sealant compression style seals for sealing wire probes or cables through a pressure or vacuum boundary. 软的密封胶压缩样式封印为海豹捕猎导线探针或缆绳通过压力或真空界限。[translate] aairline 航空公司[translate] aApplying for Inspection El solicitar la inspección[translate] ...
(46). For example, dogs and cats often find their way home from long distances. To do this they have to use their intelligence. They have to remember and think. But many birds find their way over long distances, too. They travel thousands of miles every year when they move from cool ...
aYenchen Machinery Co., Ltd. supplies various is a professional manufacturer for pharmaceutical machinery and food processing machinery. Yenchen pharmaceutical equipment includes super mixer granulators, through circulation dryers, roller compactors, planet vacuum homogeneous mixers, semi-automatic bottle washer...
Since both of these items are non-liquid, they are perfectly fine to fly in your carry-on or checked bag. To be safe, ensure they're in vacuum-sealed packaging. Shops all over the world have pre-sealed products or even equipment to seal them for you, according toMy Recipes. Creamy che...