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 theseDaredevil, Mosque, Candy apple, Poker, Swan, Sculpture, Hot air balloon, Trapper, Monkey, Pine, 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 #303


Rachel Roe
sketch #25 Suzzy the stegosaurus


El Harouati Nassera
sketch #2810 Lennon by El Harouati Nassera


Helyryn
sketch #308


anonymous
anonymous
sketch #5191 The View by Vicente Vera


anonymous
anonymous
sketch #389


anonymous
anonymous
sketch #3274


Rachel Christa Ibarrientos
sketch #3897 dolphins playing over the sea


anonymous
anonymous
sketch #3595


anonymous
anonymous
sketch #5171


anonymous
anonymous
sketch #4471 Brother Bear by Samuel Roberto


anonymous
anonymous
sketch #5303


anonymous
anonymous
sketch #4300 República, comunismo, libertad


anonymous
anonymous
sketch #1490 James Joyce....


anonymous
anonymous
sketch #5173 Super Meat Boy by Zorka Edding Giustinianovic


anonymous
anonymous
sketch #3155 Iron Man


Ainhoa White
sketch #4301


anonymous
anonymous
sketch #1131 nərgiz


anonymous
anonymous
sketch #3699 Dragon by Ana Cecilia


anonymous
anonymous
sketch #1122 norooz


anonymous
anonymous
sketch #5088


anonymous
anonymous
sketch #5101


anonymous
anonymous
sketch #3631


anonymous
anonymous
sketch #286 sun


anonymous
anonymous
sketch #5165 Marceline by Marvin Chrome


anonymous
anonymous
sketch #5211


anonymous
anonymous
sketch #5311

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