a cup of tea可数吗

　　A cup of tea? There's nothing I'd like better!

　　一杯茶？那最好不过了！

　　She put a cup of tea down on the bedside table.

　　她把一杯茶放在了床边的桌子上。

　　Breakfast consisted of dry bread and a cup of tea.

　　早餐有无黄油的面包和一杯茶。