Did you know that a simple speaker completely transformed modern music festivals? A vertical line array is a loudspeaker system that stacks speakers on top of each other so that sound is more evenly distributed on a horizontal plane. To learn more about
解析 travels 本题考查宾语从句的时态。在宾语从句中,当从句描述的是客观真理、自然现象等时,无论主句是什么时态,从句都要用一般现在时。“光比声音传播得快” 这是一个客观事实,所以即使主句 “wanted” 是一般过去时,从句中 “travel” 仍要用一般现在时的第三人称单数形式 “travels”。
(travel) faster than sound. 相关知识点: 试题来源: 解析 1.travels 考查动词时态。根据句子结构,该宾语从句是叙述永恒不变的 "真理" ,时态应为一般现在时, "light" 是主语,所以谓语动词应为三单形式 "travels" 。句意:过去的人们不知道为什么光比声音传播得快。故正确答案为:travels。
Why does my battery drain so quickly? How do I save battery power? Security Why can't I wake up or unlock my phone with my fingerprint? What can I do if I forgot my screen lock password, PIN, or pattern? How do I find or erase my phone with Find My Device? What is S...
Why does my battery drain so quickly? Understanding the phone's power usage is important to understand what is causing the power to drain. The Battery Usage History will show which apps and system services are using battery and an estimated percentage of the battery power the app or service ...
Good sound quality is possible with the Class A output stage, but power dissipation is excessive because a large dc bias current usually flows in the output-stage transistors (where we do not want it), without being delivered to the speaker (where we do want it)....
3 The teacher told us light___ much faster than sound and this ___ why you saw the lightning first and then heard the thunder.A.runs, was B.ran, was C.runs, is D.ran, is 4The teacher told us light much faster than sound and this why you saw the lightning first and then ...
Overall, baseball revenues have climbed faster than expenses, but that is because of a $250-million-a-year broadcast contract that CBS now regrets. Absent a shift to pay-per-view television for the playoffs and World Series, “we’ve pretty much seen the end of the big bursts of money,...
A. Because light is brighter than sound B. Because light travels faster than sound C. Because sound is louder than light D. Because sound travels faster than light 相关知识点: 试题来源: 解析 B。解析:文章提到光的传播速度比声音快,所以先看到闪电后听到雷声。A 选项光比声音亮不是原因;C 选项声...
Q. Does your name have any special meaning? Answer:My name is very special to me as it is to my parents. The first part of my name, Clyde, came from the name of a river, more specifically it is a Scottish river. The river was close to the location where I was born and I belie...