A.shangxueba.cn/images/ct_chibm_chibchoose_01781(20092).jpg'>
则以下关系式中正确的是(
B.
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C.shangxueba.cn/images/ct_chibm_chibchooseA_01781(20092).jpg'>
B.
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D.shangxueba.cn/images/ct_chibm_chibchooseB_01781(20092).jpg'>
C.
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E.shangxueba.cn/images/ct_chibm_chibchooseC_01781(20092).jpg'>
D.T=R×S