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Coffee was used as alcohol and medicine in the early days. ( )

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Coca-Cola only produces carbonated drinks.( )

The Boston tea event became a prelude to the North American War of Independence.( )

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Due to the existence of intermolecular hydrogen bonds in the molecules of bitter substances, the hydrophobicity of the molecules is increased and it is easier to adsorb on the taste buds, so we are more sensitive to the feeling of bitterness. ( )