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 theseSandbox, Pavilion, Funeral, French horn, Strawberry, Claim, Overalls, Platypus, Tweezers, Crick, 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 #5181


anonymous
anonymous
sketch #4414


anonymous
anonymous
sketch #4595 Hell Boy by Cristina Love


anonymous
anonymous
sketch #1185


AbdouGt Zizou
sketch #1503 L 'Algérie


anonymous
anonymous
sketch #4031


anonymous
anonymous
sketch #3686 Toy Story by Thania Arruda


sketchmaster
sketch #2483 Una Catrina by sketchmaster


anonymous
anonymous
sketch #3974 Bird Skerch w/ vibration


Tom Kelly
sketch #251


anonymous
anonymous
sketch #3290 Calvin and Hobbes by অনন্ত জলিল


Donara Smbatyan
sketch #1504 donara


Nassim Nouri
sketch #2765 Kratos by Nassim Nouri


anonymous
anonymous
sketch #5343


anonymous
anonymous
sketch #5054 Angelina Jolie by Hailey So Pretty


anonymous
anonymous
sketch #3676 Sceptical horse by Koes Maung


anonymous
anonymous
sketch #5171


Zay Lin
sketch #2087 zay lin


anonymous
anonymous
sketch #5290 Kyuubi Jorge Valero


anonymous
anonymous
sketch #4728 Angry Toad by Geneval Mendes


anonymous
anonymous
sketch #5200 Kristen Stewart by Rhemzkian Esturco


anonymous
anonymous
sketch #5085 CM Punk by Luciana Nazar


Saifa Mahmud
sketch #1671


anonymous
anonymous
sketch #5210 I love you by Saul Mansanares


anonymous
anonymous
sketch #286 sun


anonymous
anonymous
sketch #4971 Rhianna by Isaiah Fantisy Godlike


Sam Torres
sketch #2806 Puppy love by Sam Torres


anonymous
anonymous
sketch #3707 The Thinker

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