在本征半导体中掺入五价元素的杂质原子即可形成（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30217' and id < 2444146 and id<>'2444146' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30217' and id > 2444146 and id<>'2444146' order by id asc limit 5