history

Northern Song Dynasty 960-1127; Southern Song Dynasty AD1127-1279; 127 1 year-1368.

geography

Hamburg corresponds to the North Sea; Marseille corresponds to the Mediterranean; Sydney corresponds to the Pacific Ocean; Rio de Janeiro is equivalent to the Atlantic Ocean. The population of Australia is mainly distributed in the southeast coastal areas, and Australia's big cities are also distributed in the southeast coastal areas.

literature

Several early orioles raced to the sunny tree, and their new swallows were carrying mud in their nests. When spring comes, the sun rises from the river, the flowers on the river are brighter than red, and the green river is greener than the blue grass.

biology

Biology is to choose C. Penicillin is an antibiotic, which is extracted from Penicillium culture solution.