单项选择题
A.1x2斗口B.1.25x2斗口C.1.25x1.6斗口D.1.2x2斗口
A.1X 1.8斗口B.1X 2斗口C.1.2X 2斗口D.1.2X 1.8斗口
A.1.4斗口B.1.6斗口C.1.8斗口D.2.2斗口
A.1×1.4×1.4B.1.1×1.4×1.4C.1×1.5×1.5D.1×1.56×1.56
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