观察、实验、测量、社会调查也可以是课外作业的形式。 （ )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31519' and id < 2525767 and id<>'2525767' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31519' and id > 2525767 and id<>'2525767' order by id asc limit 5