如图是家鸽的肺和气囊示意图请据图回答1从图中可以看出气囊与肺相通鸟类飞行时每�吸一次空气就 次经过 .在 内进行两次气体 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 theseDrunk, Pine, Feather, Razor, Breadbox, Wrapper, Weights, Ocean, Tower, Carrots, 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 #1183


anonymous
anonymous
sketch #5020 Stitch by Hina Ali


anonymous
anonymous
sketch #1668 SUNSET


anonymous
anonymous
sketch #3572 Hate mondays by Malyi Link


anonymous
anonymous
sketch #5217


anonymous
anonymous
sketch #4867 Johnny Depp Ronin Ronin


Marlyn Ortiz
sketch #2030


anonymous
anonymous
sketch #1385 fingerschpitsengeful


Nassim Nouri
sketch #2765 Kratos by Nassim Nouri


anonymous
anonymous
sketch #4405 Cat by Nizamuddin Shuja


anonymous
anonymous
sketch #2950 Miss Fortune from League of Legends by Araceli GM


Donara Smbatyan
sketch #1452 donara


anonymous
anonymous
sketch #5248


anonymous
anonymous
sketch #3532 Angel by Geneval Mendes


anonymous
anonymous
sketch #5275


anonymous
anonymous
sketch #5290 Kyuubi Jorge Valero


anonymous
anonymous
sketch #5133 Jiraiya by Saiful Farizam


Rachel Roe
sketch #33 Flutter-bys


anonymous
anonymous
sketch #5186


anonymous
anonymous
sketch #5166 Jigsaw by Gisele Siqueira Zanni


anonymous
anonymous
sketch #5225 The Friendship by Annabelle Bourget


anonymous
anonymous
sketch #5269


anonymous
anonymous
sketch #5092 Silvers Rayleigh by Wasim Khan


anonymous
anonymous
sketch #3639


Helyryn
sketch #293 jdjdjdjdj


Donara Smbatyan
sketch #1440 donara


anonymous
anonymous
sketch #5169 Iron Man by Hannah Kellogg


anonymous
anonymous
sketch #2309


anonymous
anonymous
sketch #5261

tomski如图是家鸽的肺和气囊示意图请据图回答1从图中可以看出气囊与肺相通鸟类飞行时每�吸一次空气就 次经过 .在 coloring