单项选择题
A.{Ctrl+O} B.{Ctrl+L} C.{Ctrl+D} D.{Ctrl+J}
A.35.1×25.4 B.36.1×25.4 C.37.1×25.4 D.38.1×25.4
A.9.7×8.9 B.10.7×8.9 C.19.3×15.2 D.20.3×15.2
A.17.3×15.2 B.18.3×15.2 C.19.3×15.2 D.20.3×15.2
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