单选题For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the（）.Abowl peripheryBbowl centerCupper surfaceDlower surface
单选题
For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the（）.
A
bowl periphery
B
bowl center
C
upper surface
D
lower surface
参考解析
解析：
暂无解析
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