下列关于声音的产生和传播的说法中正确的是 A.声音都是靠空气来传播的b.只要物体振动人就能听到声音c.回声是声音被障碍物反射而形成的d Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com






Try and sketch some of theseLederhosen, Pegboard, Scientist, You self portrait, Sideshow, Hand, Plumber, Ivy, Roof, Slicer, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #5053


anonymous
anonymous
sketch #5176


Mirnes Sinanovic
sketch #2640 Marge by Mirnes Sinanovic


anonymous
anonymous
sketch #1183


anonymous
anonymous
sketch #5074


anonymous
anonymous
sketch #5186


sketchmaster
sketch #2452 Manga by sketchmaster


anonymous
anonymous
sketch #5090


anonymous
anonymous
sketch #2279 puppetsss


Helyryn
sketch #308


anonymous
anonymous
sketch #5188 Paul Walker by Taï Marsan


anonymous
anonymous
sketch #3431 Jimi Hendrix by Konvicted Rohit


Jorge Valero
sketch #2735


anonymous
anonymous
sketch #2877 Elvis by Karoline Castillo


anonymous
anonymous
sketch #3974 Bird Skerch w/ vibration


anonymous
anonymous
sketch #4896


anonymous
anonymous
sketch #1153 sahib


anonymous
anonymous
sketch #2965 Flapjack by Farzin Hedayatzadeh


anonymous
anonymous
sketch #4682 Elvis Presley by Nassim Nouri


anonymous
anonymous
sketch #4976


anonymous
anonymous
sketch #1711


anonymous
anonymous
sketch #4386 Freddie Mercury by Павел Павлов


anonymous
anonymous
sketch #3261


Nemo Archt
sketch #4134 1 min sketch


anonymous
anonymous
sketch #3683 Hellboy by Loai Issa


James Forest
sketch #3014 Fancy "S "


anonymous
anonymous
sketch #5157

tomski下列关于声音的产生和传播的说法中正确的是 a.声音都是靠空气来传播的b.只要物体振动人就能听到声音c.回声是声音被障碍物反射而形成的d coloring