4.在动物实验中正确设置对照组不容易.例如要选择30个完全相似的动物将其均分为对照组和实验组就比较困难.那么进行这种实验时你认为 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 theseTicket, Rake, Indian, Pie, Magician, Zipper, Moonshine, Tsunami, Railroad, Pot bellied pig, 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?

Ashok Kumar Chaturvedi
sketch #2699 Girl in shades Ashok Kumar Chaturvedi


anonymous
anonymous
sketch #5190 That Night by Nînâ Yämâhä


anonymous
anonymous
sketch #4522 Adventure Time by KiNg Buamir


anonymous
anonymous
sketch #5229


anonymous
anonymous
sketch #5123


anonymous
anonymous
sketch #5311


anonymous
anonymous
sketch #5182 Inuyasha by Sepp Herberger


anonymous
anonymous
sketch #3204 eminem


anonymous
anonymous
sketch #3581 Dante


anonymous
anonymous
sketch #5340 Amazing Dragon


anonymous
anonymous
sketch #5221


anonymous
anonymous
sketch #1170


anonymous
anonymous
sketch #4983


anonymous
anonymous
sketch #5068


anonymous
anonymous
sketch #4601 PSY Gentleman by Luis Daniel Sanchez Ramirez


anonymous
anonymous
sketch #5208 Alf by David Rossien


anonymous
anonymous
sketch #5350


anonymous
anonymous
sketch #1131 nərgiz


Милен Тревата
sketch #2771 Naruto by Милен Тревата


anonymous
anonymous
sketch #3459 BLUE from fosters imagenary friends


anonymous
anonymous
sketch #4688


anonymous
anonymous
sketch #1287 No smoke


anonymous
anonymous
sketch #4929


anonymous
anonymous
sketch #5133 Jiraiya by Saiful Farizam


anonymous
anonymous
sketch #5187


anonymous
anonymous
sketch #578 Butterflies

tomski4.在动物实验中正确设置对照组不容易.例如要选择30个完全相似的动物将其均分为对照组和实验组就比较困难.那么进行这种实验时你认为 coloring