对自动喷水灭火器系统实施检查维护，下列项目中，属于年度检査内容的是（ )。[单选]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29214' and id < 2377392 and id<>'2377392' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29214' and id > 2377392 and id<>'2377392' order by id asc limit 5