In order to right the wrong by further honoring these people, a campaign is being launched
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With the help of 4G networks, traffic light cycle period can be adjusted according to ______.
使用[说明]中的词语,给出图7-11中的数据存储D1~D4的名称。
SQL语句“SELECT TOP 10 PERCENT*FROM订单0RDER BY金额DESC”的查 询结果是订单中金额 的10%的订单信息。