商业银行贷款业务根据有无担保可以分为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26586' and id < 2215353 and id<>'2215353' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26586' and id > 2215353 and id<>'2215353' order by id asc limit 5