jardini arowana Sism want to come to the second issue

　　jardini arowana Sism want to come to the second issue6.Who is the official president of the first Dragon Association Cup in 2019?

　　A.Wen Jiangqiang B.Xiao Wenqin C.Zhang Guogang D.Zhao Haining

　　7.At the end of 2018, the Japanese Koi Auction is from 2,09 million yuan in a $ 55 million. What is the system?

　　A.Red and white koi B.White written koi C.Showa Tricolor Koi D.Dacheng three-color koi

　　8.Which filter material does not belong to the adsorption filter?

　　A.Activated carbon B.Mai Hotel C.Volcanic D.Absorbent

　　9.

　　What is the fish in the movie "Submarine Mobilization"?

　　A.Clown fish B.Gold hanging C.Blue down D.Lionfish

　　10.Is the following describes the description of nitrification bacteria?

　　A.Nitrification bacteria is a potion

　　B.Nitrification bacteria must attach to objects to reproduce survival

　　C.Nitrification bacteria can only be added once when it is opened.

　　D.Nitrification bacteria can decompose to remove ammonia nitrogen nitriteSilver Ingot/Qing Qing Ingot.Silver ingot mould^Paper gold ingots and silver ingots$How long can the fish live!How to fold paper money silver ingots)Ancient silver ingot style?High imitation silver ingot" Belfast Fish！