How loud is 60 dBA? 60 decibels is as loud as a normal conversation between two people sitting at a distance of about one meter (3 ¼ feet). It is the average sound level of a restaurant or an office. Is 44 dB quiet for a dishwasher? Quiet - 44 dB At 44 dB the dishwasher is...
He would sneak me downstairs for ice cream when Grandmother was in the bathroom, while I 48 added more sugar in his morning drink because he had a 49 tooth that Grandmother disapproved of.I wanted to 50 this quiet man. I did not believe it was his time to go. I had 51 about paper...
The best number to use is the average as the max number is very sensitive to throat clearing, doors closing, or the laughter of your children “trying to be quiet while Daddy works”.The second and third distances represent the distances from the machines to the approximate head position of...
[A] peaceful [B] quiet [C] silent D] personal 26. The girl cannot come to school today on account of the flu. The underlined part means___. [A] concerning [B] because of [C]as to [D]for 27. Mary and John are busy looking for a hotel for their wedding ___. [A] meal [B...
C.Create a quiet dining atmosphere for customers. D.Attach“healthy”labels to the food on the menu. 35 A. C. B. D. 第二节(共5小题;每小题2.5分,满分12.5分) 阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。选项...
1.5 Sones 34 dBa 2 Sones 38 dBa Quiet library sounds 2.5 Sones 42 dBa 3 Sones 44 dBa 3.5 Sones 46 dBa 4 Sones 48 dBa Watching TV at normal volume 4.5 Sones 50 dBa 5 Sones 52 dBa 5.5 Sones 53 dBa 6 Sones 54 dBa A fan with a noise level of 1.0 sones or less is ...
20 dBA: whisper, quiet room 30 dBA: soft music 40 dBA: home computer fan 50 dBA: home air conditioning, light outside traffic 60 dBA: normal conversation 70 dBA: flushing toilet, home dishwasher, noisy room 80 dBA: server room, alarm clock, inside an airplane ...
1) 语法形式上要一致,即单复数形式与谓语要一致。 2) 意义上要一致,即主语意义上的单复数要与谓语的单复数形式一致。 3) 就近原则,即谓语动词的单复形式取决于最靠近它的词语, 一般来说,不可数名词用动词单数,可数名词复数用动词复数。例如: There is much wate...
She is a quiet girl at school,but sometimes she ___ be very naughty. A.shouldB.wouldC.canD.will 试题答案 在线课程 C 试题分析:句意为:在学校里,她是一个很温顺的女孩儿,但是有时候她可能也很淘气。情态动词表推测的用法。should 表应该;would 表示意愿;can用于否定句表推测,不可能,也可用于肯定句...
B Alyssa's dream of going to Mars lasts for a long time( We can ask parents for help when we have trouble in learning D Alyss a is a quiet and hard-working student at school( )50 What does the writer mostly want to tell us? A Interest is the best teacher for children B It's ...