一台三相变压器，Yd连接，U1N/U2N=35/6.3KV，则该变压器变比为（      ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id < 4421149 and id<>'4421149' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id > 4421149 and id<>'4421149' order by id asc limit 5