陈某在商场金店发现柜台内放有一条重13克、价值4700元的纯金项链，与自己所戴的镀金项链样 式相同。陈某以挑选金项链为名，趁售货员不注意，用自己的镀金项链调换了上述纯金项链。陈某的行为( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28406' and id < 2321531 and id<>'2321531' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28406' and id > 2321531 and id<>'2321531' order by id asc limit 5