对高、中碾压式土石坝不应采用布置在软基上的（ ）形式。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29436' and id < 2396661 and id<>'2396661' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29436' and id > 2396661 and id<>'2396661' order by id asc limit 5