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Octopus in the deep-water marine fish. In the market, there is no live octopus for sale, is difficul

heaven and earth Year of the Ox Xingjian2010-01-28 13:01:53 +0000 #1
, octopus in the deep-water marine fish in the market, there is no live octopus for sale, it is difficult to culture because the octopus. Hairtail difficult to culture the main cause factor is () A food C water temperature B pressure of oxygen dissolved in water D
Long Gang Soul2010-01-28 13:07:31 +0000 #2
Select C

in fact you check on the line, do not have to ask, has already been asked by

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