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题库 / Prep2007E2-SC-139
Taste buds are onion-shaped structures with between 50 and 100 taste cells, each of them has fingerlike projections poking through the opening located at the top of the taste bud called the taste pore.
them has fingerlike projections poking through the opening located at the top of the taste bud called the taste pore
them that have fingerlike projections that poke through an opening located at the top of the taste bud, which they call the taste pore
which has fingerlike projections poking through the opening, called the taste pore, located at the top of the taste bud
which having fingerlike projections that poke through an opening, which is called the taste pore, located at the top of the taste bud
which have fingerlike projections that are poking through an opening located at the top of the taste bud called the taste pore
请问AB选项的each of them是否有问题？
each of them不能引导定语从句对吗？如果是合句的话两个分句之间需要连词连接，对吧？
A是有问题的，没错。
但是B选项可以，因为这里的each of them可以作为同位语，不是定语从句，自然也就不需要连词。
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