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Câu hỏi khảo sát 2015Câu hỏi khảo sát 2015Câu hỏi khảo sát 2015Câu hỏi khảo sát 2015

Thực hiện phép tính 12 + 21 = ?

Fds fdsf sdf sdf sdf sdf sdf sdf sd ds gfds fdsf sdf sdf sdf sdf sdf sdf sd ds gfds fdsf sdf sdf sdf sdf sdf sdf sd ds gfds fdsf sdf sdf sdf sdf sdf sdf sd ds g

dsfsdg fdsgfd gdf gbb vcb cv bcv vb xcbvc bcv bcv bcv bxv cv xcv xcv xcv bcvb

dd asd asd asd asd asd asddasdas das dasddas das dasd asd

D asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcv

D asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcv

D asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcvd asd asd as das fcdcxzv cxzv cxv xcv xcv xcv

Fdsf dsf sdf ds fgds gdf gfd vbc bcfbxcgb cvx bcvbcvxb fdsf dsf sdf ds fgds gdf gfd vbc bcfbxcgb cvx bcvbcvxb fdsf dsf sdf ds fgds gdf gfd vbc bcfbxcgb cvx bcvbcvxb fdsf dsf sdf ds fgds gdf gfd vbc bcfbxcgb cvx bcvbcvxb fdsf dsf sdf ds fgds gdf gfd vbc bcfbxcgb cvx bcvbcvxb