问题描述：
下列单词中,哪些是单数,哪些是复数,哪些是单复数同形?
tea,beer,milk,coffee,wine,hot chocolate,
noodles,pizza,rice,bread,hamburgers,hot dogs,sanwiches,spaghetti (意面)
shrimp,fish,crab(螃蟹肉),lobster(龙虾)
pork,chicken,beef,duck,lamb
tea,beer,milk,coffee,wine,hot chocolate,
noodles,pizza,rice,bread,hamburgers,hot dogs,sanwiches,spaghetti (意面)
shrimp,fish,crab(螃蟹肉),lobster(龙虾)
pork,chicken,beef,duck,lamb
问题解答：
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