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[单选] "What"s the normal best height respectively for taping and plugging?通常,缠胶带和端子插接的最佳高度分别是"a. 0.85m~1.2m and 0.9m~1.0mb. 0.9m~1.2m and 0.95m~1.1mc. 0.95m~1.2m and 0.85m~1.1md. 0.95m~1.1m and 1.0m~1.2m
A.A B.B C.C D.D
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