题目内容
正弦量可以用相量表示，所以相量就是正弦量。（ ）
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69313' and id < 4487550 and id<>'4487550' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69313' and id > 4487550 and id<>'4487550' order by id asc limit 5