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http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image053.gifhttp://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image054.gif,运算“ http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image055.gif”、“ http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image056.gif”定义为: http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image057.gif= http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image058.gifhttp://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image059.gif= http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image060.gif,则下列各式其中恒成立的 http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image061.gif是            ① http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image062.gif         ② http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image063.gifhttp://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image064.gif        ④ http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image065.gif

发布时间:2021-08-03

A.① 与 ②http://picflow.koolearn.com/upload/2011-03/22/4e0fccc4-01c7-46cd-93c7-a96b400b1d58/paper.files/image061.gif

B.① 与 ③

C.② 与 ③

D.② 与 ④

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